Buchem, I., Attwell, G. & Torres, R. (2011). Understanding Personal Learning Environments: Literature Review and Syntheis Through Activity Theory Lense.

In: Proceedings on the PLE Conference 2011.

List of References used for the literature review in alphabetical order:

Scientific Papers

1. Adell, J. & Castañeda, L. (2010). Los Entornos Personales de Aprendizaje (PLEs): una nueva manera de entender el aprendizaje. En Roig Vila, R. & Fiorucci, M. (Eds.) Claves para la investigación en innovación y calidad educativas. La integración de las Tecnologías de la Información y la Comunicación y la Interculturalidad en las aulas. Stumenti di ricerca per l’innovaziones e la qualità in ámbito educativo. La Tecnologie dell’informazione e della Comunicaziones e l’interculturalità nella scuola. Alcoy: Marfil – Roma TRE Universita degli studi
2. Arenas, E (2008). Personal Learning Environments: Implications and Challenges, in D Orr, PA Danaher, G Danaher and RE Harreveld (eds), Lifelong Learning: Reflecting on Successes and Framing Futures. Keynote and Refereed Papers from the 5th International Lifelong Learning Conference,  Central Queensland University Press, Rockhampton, QLD, pp. 54–59. Retrieved from http://cddu.cqu.edu.au/images/5/51/PlePapersSymposium2008.pdf
3. Arina, T. (2007). Informal Learning and the Role of Emerging Social Technologies. Retrieved from http://www.ipbz-corsi.it/scuola3d/documenti/1/3664_teemu_arina-bolzano_conversation-07.pdf
4. Arrizabalaga, P.; Monguet, J. M. & Ferruzca, M. (2010). Supporting the Online Tutoring Process through a Personalized Learning Environments. The PLE Conference, Barcelona, July 8-9, 2010. Retrieved from http://pleconference.citilab.eu/wp-content/uploads/2010/07/ple2010_submission_65.pdf
5. Attwell, G. (2007). Personal Learning Environments for creating, consuming, remixing and sharing. In: David Griffiths, Rob Koper, Oleg Liber (Eds.): Service Oriented Approaches and Lifelong Competence Development Infrastructures: Proceedings of the 2nd TENCompetence Open Workshop. Institute of Educational Cybernetics, Bolton. Retrieved from http://www.ergonkek.gr/bazaar/papers/GAPospap.pdf
6. Attwell, G. (2007). The Personal Learning Environments - the future of eLearning? In: eLearning Papers. Vol. 2, Nr. 1, 2007 Retrieved from http://www.elearningeuropa.info/files/media/media11561.pdf
7. Attwell, G. (2007). e-Portfolios – the DNA of the Personal Learning Environment? Journal of e-Learning and Knowledge Society, 3/2. Retrieved from http://je-lks.maieutiche.economia.unitn.it/en/07_02/05Art_attwell_inglese.pdf
8. Attwell, G.; Bimrose, J; Brown A. & Barnes, S.-A. (2008). Maturing learning: Mash up Personal Learning Environments. In: Fridolin Wild, Marco Kalz, Matthias Palmér (Eds.): Proceedings of the First International Workshop on Mashup Personal Learning Environments (MUPPLE08) Maastricht, The Netherlands, September 17, 2008. In conjunction with the 3rd European Conference on Technology Enhanced Learning (EC-TEL'08), Maastricht School of Management, Maastricht, The Netherlands, September 18-19, 2008. Vol. 388, Maastricht 17. September 2008 Retrieved from http://www.scribd.com/doc/24808470/Maturing-Learning-Mashup-Personal-Learning-Environments-by-Graham-Attwell-Jenny-Bimrose-Alan-Brown-Sally-Anne-Barnes  
9. Attwell, G. (2010). Supporting Personal Learning in the Workplace. Retrieved June 2, 2011 from: http://pleconference.citilab.eu/wp-content/uploads/2010/09/ple2010_submission_66.pdf
10. Barrett, H. C. & Garrett, N. (2009). Online personal learning environments: structuring electronic portfolios for lifelong and life-wide learning. On the Horizon, 17 (2), pp. 142 - 152
11. Blees, I. & Rittberger, M. (2009). Web 2.0 Learning Environment: Concept, Implementation, Evaluation. eLearning Papers (2009) 15 Retrieved from http://www.elearningpapers.eu/en/paper/new-learning-generation
12. Brown, S. C. (2010). From VLEs to learning webs: The implications of web 2.0 for learning and teaching. Interactive Learning Environments, 18(1), 1-10. Taylor and Francis.
13. Castañeda, L. & Adell, J. (2011) El desarrollo profesional de los docentes en entornos personales de aprendizaje (PLE). En  Roig, R. y Laneve, C. La práctica educativa en la sociedad de la información. Innovación a través de la investigación. La pratica educativa nella società dell’informazione. L’innovazione attraverso la ricerca. Alcoy (España)-Brescia (Italia): Editorial Marfil & La Scuola Editrice.
14. Castañeda, L. & Soto, J. (2010). Patchworking Web 2.0 for learning:  Introducing ICT as a professional tool building Personal learning Environments. The PLE Conference Barcelona 6-8 July 2010. Retrieved from http://pleconference.citilab.eu
15. Casquero, O. (2010). Towards an eLearning 2.0 provisioning strategy for universities. The PLE Conference, Barcelona, July 8-9, 2010. Retrieved from http://pleconference.citilab.eu/wp-content/uploads/2010/06/ple2010_submission_211.pdf
16. Chatti, M. A., Jarke, M., Wang, Z., & Specht, M. (2009). SMashup Personal Learning Environments. In F. Wild, M. Kalz, M. Palmér & D. Müller (Eds.), Proceedings of 2nd Workshop Mash-Up Personal Learning Environments (MUPPLE'09).
17. Chatti, M. A. (2009). PLEF: A Conceptual Framework for Mashup Personal Learning Environments. Learning Technology Newsletter, 11 (3).
18. Chen, W. P., Millard, D. and Wills, G. (2008). Mobile VLE vs. Mobile PLE: How Informal is Mobile Learning? In: mLearn 2008 Conference, Wed 8th to Fri 10th October , the University of Wolverhampton.
19. Corlett, D.; Chan, T.; Ting, J. & Sharples, M. (2010). Interactive Logbook: a Mobile Portfolio and Personal Development Planning Tool. The PLE Conference, Barcelona, July 8-9, 2010. Retrieved from http://www.mlearn.org.za/CD/papers/Corlett.pdf
20. Costa, F. A.; Cruz, E. & Viana, J. (2010). Managing personal learning environments: the voice of the students. The PLE Conference, Barcelona, July 8-9, 2010. Retrieved from http://pleconference.citilab.eu/wp-content/uploads/2010/06/ple2010_submission_9.pdf
21. Couros, A. (2010). Developing Personal Learning Networks for Open & Social Learning. In Veletsianos, G. (Ed). Emerging Technologies in Distance Education. Edmonton: Athabasca University Press. Retrieved from http://www.aupress.ca/books/120177/ebook/06_Veletsianos_2010-Emerging_Technologies_in_Distance_Education.pdf
22. Döbeli H., B. & Neff, C. (2010). Personal Smartphones in Primary School: Devices for a PLE? In: R. Torres et al. (Eds.) The PLE Conference, Barcelona, July 8-9, 2010. Retrieved from: http://beat.doebe.li/publications/2010-doebeli-honegger-neff-smartphones-in-primary-school.pdf
23. Downes, S. (2005) E-learning 2.0. eLearn Magazine, Association for Computing Machinery. Retrieved from:
    http://www.elearnmag.org/subpage.cfm?section=articles&article=29-1
24. Downes, S. (2006). Learning Networks and Connective Knowledge. Retrieved from http://it.coe.uga.edu/itforum/paper92/paper92.html
25. Downes, S. (2007). Learning networks in practice', Emerging Technologies for Learning 2 , 19--27. Retrieved from: http://www.downes.ca/files/Learning_Networks_In_Practice.pdf
26. Downes, S. (2010). New Technology Supporting Informal Learning. Journal of Emerging Technologies in Web Intelligence, 2(1), 27-33.
27. Drexler, W. (2010). The networked student model for construction of personal learning environments: Balancing teacher control and student autonomy. Australasian Journal of Educational Technology 2010, 26(3), 369-385
28. Fiedler, S., & Pata, K. (2009). Distributed learning environments and social software: In search for a a framework of design. In S. Hatzipanagos & S. Warburton (Eds.), Handbook of Research on Social Software and Developing Community Ontologies (pp. 145-158). Hershey, PA, USA: IGI Global.
29. Fiedler, S. (2010). Personal Learning Environments_ concept or technology? The PLE Conference Barcelona 6-8 July 2010. Retrieved from:  http://pleconference.citilab.eu/wp-content/uploads/2010/07/ple2010_submission_45.pdf 
30. Fournier, H. and Kop, R. (2010) Researching the design and development of a Personal Learning Environment, PLE Conference Barcelona 6-8 July 2010. Retrieved from: http://pleconference.citilab.eu/cas/wp-content/uploads/2010/06/ple2010_submission_88.pdf
31. Futurelab. The Learner’s Charter for a personalised learning environment. Retrieved  from http://archive.futurelab.org.uk/resources/documents/opening_education/Learners_Charter.pdf
32. Green, S.; Nacheva-Skopalik, L. and Pearson, E. (2008). An Adaptable Personal Learning Environment for e-Learning and e-Assessment, Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing - Gabrovo, Bulgaria, June 12-13, 2008
33. Grosseck, G. & Holtescu, C. (2010). Anagramming PLE: Empowering Professional Learning through microblogging. The PLE Conference Barcelona 6-8 July 2010. Retrieved from: http://www.scribd.com/doc/33944318/Anagramming-PLE-Empowering-Professional-Learning-through-microblogging
34. Harmelen, M. van. (2006). Personal Learning Environments. Sixth IEEE International Conference on Advanced Learning Technologies (ICALT06) (pp. 815-816). Retrieved from: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.97.2772&rep=rep1&type=pdf.
35. Harmelen, M. V. (2008). Design trajectories: four experiments in PLE implementation. Interactive Learning Environments, 16 (1), 35-46. Routledge.
36. Henri, F., Charlier, B., & Limpens, F. (2008). Understanding PLE as an essential components of the learning process. Proceedings of World Conference on Educational Multimedia, Hypermedia and Telecommunications 2008 (pp. 3766-3770). Chesapeake, VA: AACE.
37. Ivanova, M. (2008). Multichannel Self-Organized Learning and Research in Web 2.0 Environment, TEN Competence Special Technology Track „Technology Support for Self-Organized Learners (TSSOL08), Salzburg.
38. Ivanova, M. (2009). From personal learning environment building to professional learning network forming. Paper presented at the 5th International Scientific Conference E-learning and Software for Educatio. Retrieved from: http://www.scribd.com/doc/22583785/From-Personal-Learning-Environment-Building-To-Professional-Learning-Network-Forming
39. Johnson, M. W (2007). Towards a Reference Model for the Personal Learning Environment. Ascilite Conference, Sydney, Australia 2007 Retrieved from: http://www.ascilite.org.au/conferences/sydney06/proceeding/pdf_papers/p141.pdf
40. Johnson, M.; Liber, O.; Wilson, S.; Sharples, P.; Milligan, C. and Beauvoir, P. (2006). Mapping the Future: The personal learning environment reference model and emerging technology. In Whitelock, D. & Wheeler, S. (Eds). The next generation. Research Proceedings of the 13th Association for Learning Technology Conference (ALT-C 2006). Held 5–7 September 2006, Heriot-Watt University, Scotland, UK.
41. Johnson, M., & Liber, O. (2008). The Personal Learning Environment and the human condition: From theory to teaching practice. Interactive Learning Environments, 16 (1), 3-15.
42. Jones, D. (2008). PLEs: Framing one future for lifelong learning, e-learning and universities. Proceedings of the 5th International Lifelong Learning Conference. Central Queensland University, Australia. Retrieved May 20, 2011 from http://davidtjones.wordpress.com/publications/ples-framing-one-future-for-lifelong-learning-e-learning-and-universities/
43. Kerres, M. (2009). PLE09 der PH Goldau. Retrieved from: http://mediendidaktik.uni-duisburg-essen.de/content/ple09-der-ph-goldau
44. Mayrberger, K. (2010). Neues Lernen mit neuen Medien 2.0. Potentiale und Grenzen von Personal Learning Environments (PLE) für Schule und Hochschule. In P. Bauer, H. Hoffmann & K. Mayrberger (Eds.), Fokus Medienpädagogik – Aktuelle Forschungs- und Handlungsfelder (pp. 280-298). München: kopaed
45. McElvaney, J. & Berge, Z. (2009). Weaving a Personal Web: Using online technologies to create customized, connected, and dynamic learning environments. Canadian Journal of Learning and Technology, 35 (2), 10.
46. Milligan, C., Johnson, M., Sharples, P., Wilson, S., & Liber, O. (2006). Developing a reference model to describe the personal learning environment. In W. Nejdl &
    K. Tochtermann (Eds.), Innovative Approaches for Learning and Knowledge Sharing - First European Conference on Technology Enhanced Learning, ECTEL 2006 (pp. 506-511). Berlin/Heidelberg: Springer
47. Millgran, C. (2006). The Road to the Personal Learning Environment. Retrieved from http://zope.cetis.ac.uk/members/ple/resources/colinmilligan.pdf 
48. Mödritscher, F., Petrushyna, Z., & Law, E. L.-C. (2010). Utilising Pattern Repositories for Capturing and Sharing PLE Practices in Networked Communities. International Conference on Knowledge Management IKnow (pp. 150-161).
49. Muldoon, N. (2008). Self-direction and lifelong learning in the information age: Can PLEs help? In D Orr, P Danaher, G Danaher & RE Harreveld (Eds), Proceedings of the 5th International Lifelong Learning Conference: Reflecting on successes and framing futures, Yeppoon, Qld, 16-19 Jun. Retrieved from: http://cddu.cqu.edu.au/images/1/1e/Muldoon_ple_v3.pdf
50. Munoz Organero, M., Delgado Kloos, C., & Munoz Merino, P. (2010). Personalized Service-Oriented E-Learning Environments. IEEE Internet Computing, 14 (2), 62-67.
51. Nelkner, T.; Reinhardt, W. & Attwell, G. (2008). Concept of a Tool Wrapper Infrastructure for Supporting Services in a PLE. In: A. Schmidt, G. Attwell, S. Braun, S. Lindstaedt, R. Maier, E. Ras (Eds.): 1st International Workshop on Learning in Enterprise 2.0 and Beyond. Vol. 383, 2008. Retrieved June 22, 2011 from: http://mature-ip.eu/files/leb08/leb08_nelkner.pdf
52. Olivier, B., & Liber, O. (2001). Lifelong Learning: The Need for Portable Personal Learning Environments and Supporting Interoperability Standards. Retrieved from http://wiki.cetis.ac.uk/images/6/67/Olivierandliber2001.doc 
53. Pearson, E., Green, S. & Gkatzidou, S. (2008). Enabling learning for all through adaptable personal learning environments, Proceedings ASCILITE Australasian Society for Computers in Learning in Tertiary Education, 2008, Melbourne, December 1 - 3. Australasian Society for Computers in Learning in Tertiary Education, pp.742-749. Retrieved from http://www.ascilite.org.au/conferences/melbourne08/procs/pearson.pdf
54. Pearson, E., Gkatzidou, V., & Green, S. (2009). A proposal for an adaptable personal learning environment to support learners needs and preferences. Learning, 749-757.
55. Peña-López, I. (2009). The personal research portal: web 2.0 driven individual commitment with open access. In Hatzipanagos, S. & Warburton, S. (Eds.), Handbook of Research on Social Software and Developing Community Ontologies, Chapter 26, 400-414. Hershey: IGI Global.
56. Põldoja, H., Väljataga, T. (2010). Externalization of a PLE: Conceptual Design of LeContract. In: The PLE 2010 Conference Proceedings. Retrieved from http://pleconference.citilab.eu/cas/wp-content/uploads/2010/06/ple2010_submission_68.pdf
57. Ravensbourne. Listening to Learners on the PLE. Retrieved from https://confluence.rave.ac.uk/confluence/display/SCIRCLINR/Listening+to+Learners+on+the+PLE
58. Roder, J. & Brown, M. (2009). What leading educators say about Web 2.0, PLEs and e-portfolios in the future. In Same places, different spaces. Proceedings ascilite Auckland 2009. http://www.ascilite.org.au/conferences/auckland09/procs/roder.pdf
59. Schaffert, S. & Hilzensauer, W. (2008). On the way towards Personal Learning Environments: Seven crucial aspects. In: elearningpapers, 9, July 2008. Retrieved from http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.167.4083
60. Schaffert, S. & Kalz, M. (2010). Persönliche Lernumgebungen: Grundlagen, Möglichkeiten und Herausforderungen eines neuen Konzepts. In: Grundlagen der Weiterbildung – Praxishilfen, Neuwied: Luchterhand, Ergänzungslieferung Mai 2010. Retrievedfrom http://dspace.learningnetworks.org/bitstream/1820/1573/1/schaffert_kalz_ple09_dspace.pdf
61. Sclater, N. (2008). Web 2.0, Personal Learning Environments, and the Future of Learning Management Systems, ECAR, 2008 (13). Retrieved from http://net.educause.edu/ir/library/pdf/ERB0813.pdf 
62. Severance, C., Hardin, J., & Whyte, A. (2008). The coming functionality mash-up in Personal Learning Environments. Interactive Learning Environments, 16 (1), 47-62.
63. Siemens, G. (2006). Learning or Management Systems? Proceedings of the International Conference October 14 2003 Tartu Estonia. University of Tartu. Retrieved from http://www.connectivism.ca/?p=243 
64. Skrabut, S. Personal Learning Environments: The Natural Way of Learning. Retrieved from http://www.uwyo.edu/skrabut/docs/ADED5050_project.pdf
65. Soylu, A., Wild, F., Mödritscher, F., & Causmaecker, P. D. (2010). Toward Developing a Semantic Mash-up Personal and Pervasive Learning Environment : SMupple. Learning. CEUR-WS.
66. State, P. (2009). Seven Things You Should Know About Personal Learning Environments. Scenario, 2. Educause.
67. Taraghi, B., Ebner, M., Till, G. & Mühlburger, H. (2009) Personal Learning Environment – A Conceptual Study, International Conference on Interactive Computer Aided Learning (ICL 2009), Villach, AT. Retrieved from http://www.scribd.com/doc/20156291/Personal-Learning-Environment-A-Conceptual-Study
68. Torres Kompen, R. et al. (2009). Putting the pieces together: Conceptual frameworks for building PLEs with web 2.0 tools. In: A. Szücs, A. Tait, M. Vidal & U. Bernath (Eds.), Distance and E-learning in transition: Learning innovation, technology and social challenges (Wiley-ISTE©2009), pp. 783-808.
69. Trafford, P. (2006). PLEs as Environments for Personal and Personalised Learning. Retrieved from http://weblearn.ox.ac.uk/site/asuc/oucs/staff/pault/research/mobile/ramble/present/uploads/PaulT_Mini%20PLEPaper1.0.pdf
70. Türker, M. & Zingel, S. (2008). Formative Interfaces for Scaffolding Self-Regulated Learning in PLEs. eLearning Papers, www.elearningpapers.eu, Nº 9 - July 2008 - ISSN 1887-1542
71. Whittaker, S. & Cann, A. (2010). Using Web 2.0 to Cultivate Information Literacy via Construction of Personal Learning Environments. Journal for Excellence in teaching and Learning. Vol.1. Retrieved from https://physics.le.ac.uk/journals/index.php/jetl/index
72. Wild, F.; Mödritscher, F. and  Sigurdarson, S. (2008) Designing for Change: Mash-Up Personal Learning Environments. Retrieved from http://www.elearningpapers.eu/en/article/Designing-for-Change%3A-Mash-Up-Personal-Learning-Environments?paper=57347
73. Wild, J., Wild, F., Kalz, M., Specht, M., & Hofer, M. (2009). The MUPPLE competence continuum. In F. Wild, M. Kalz, M. Palmér & D. Müller (Eds.), Proceedings of 2nd Workshop Mash-Up Personal Learning Envrionments (MUPPLE'09). Workshop in conjunction with 4th European Conference on Technology Enhanced Learning (EC-TEL 2009): Synergy of Disciplines (pp. 80-88). September, 29, 2009, Nice, France: CEUR workshop proceedings. Retrieved from http://sunsite.informatik.rwth-aachen.de/Publications/CEUR-WS/Vol-506
74. Wilson, S.; Liber, O.;  Johnson, M.; Beauvoir, P.; Sharples, P. & Milligan, C. D. (2006). Personal Learning Environments: Challenging the Dominant Design of Educational Systems. EC-TEL Workshops, Volume 213 von CEUR Workshop Proceedings, CEUR-WS.org, Retrieved rom http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.107.3816&rep=rep1&type=pdf
75. Wilson, S. (2008). Patterns of Personal Learning Environments. Interactive Learning Environments, 16 (1), 17-34. Routledge.  
76. Žubrinić, K. and Kalpić, D. (2008). The Web as Personal Learning Environment. International Journal of Emerging Technologies in Learning (iJET), Vol 3 (2008). Retrieved from http://online-journals.org/i-jet/article/viewArticle/576

 
Blog articles

1. Anderson, T. (2006). PLEs versus LMS: Are PLEs ready for Prime time? Retrieved from http://terrya.edublogs.org/2006/01/09/ples-versus-lms-are-ples-ready-for-prime-time/
2. Anderson, T. (2007). McLuhan’s Laws of Media and the PLE. Retrieved from http://terrya.edublogs.org/2007/04/10/mcluhan%E2%80%99s-laws-of-media-and-the-ple/
3. Attwell, G. (2010). The affordances of Web 2.0 and PLEs. Retrieved from http://www.pontydysgu.org/2010/03/the-affordances-of-web-2-0-and-the-development-of-personal-learning-environments/
4. Baxi, V. (2010). PLEs are an Operating System for Learning. Retrieved from http://learnos.wordpress.com/2010/09/13/ples-are-an-operating-system-for-learning/
5. Briggs, D. (2010). The Rise of the Personal Learning Environment. Retrieved from: http://www.learningpool.com/blog/the-rise-of-the-personal-learning-environment/ 
6. Casquero. O. (2009). Learn-Streaming support for Personal Learning Networks. Retrieved from: http://personallearningenvironments.wordpress.com/2009/01/24/learn-streaming-support-for-personal-learning-networks/ 
7. Cormier, D. (2010). 5 points about PLEs PLNs for PLENK10. Retrieved from http://davecormier.com/edblog/2010/09/12/5-points-about-ples-plns-for-plenk10/
8. Couros, A. (2008). What is a PLN? Or, PLE vs. PLN? Retrieved from: http://educationaltechnology.ca/couros/1156 
9. Gerth, M. (2010). Die Persönliche Lernumgebung (PLE) als neues Lernkonzept. Retrieved from: http://medienportal.uni-leipzig.de/blog/index.php?/archives/142-Die-Persoenliche-Lernumgebung-PLE-als-neues-Lernkonzept.html
10. Haskins, T. (2007). If this is your first PLE. Retrieved from http://growchangelearn.blogspot.com/2007/09/if-this-is-your-first-ple.html
11. Karrer, T. (2007). Personal Learning Knowledge Work Environment: eLearning Technology. Retrieved from http://elearningtech.blogspot.com/2007/05/personal-learning-environment-ple.html
12. Karrer, T. (2007). Personal Work and Learning Environments – More Discussion: eLearning Technology. Retrieved from http://elearningtech.blogspot.com/2007/06/personal-work-and-learning-environments.html
13. Karrer, T. (2007). More on Personal Learning Environments. Retrieved from: http://elearningtech.blogspot.com/2007/04/more-on-personal-learning-environments.html 
14. Kop, R. (2010). Modeling PLE based learning. Retrieved from http://ritakop.blogspot.com/2010/11/modelling-ple-based-learning.html
15. Kop, R. (2010). PLE Components on the climbing frame of learning. Retrieved from http://ritakop.blogspot.com/2010/10/ple-components-on-climbing-frame-of.html
16. Kop, R. (2010). The eXtended Web and the Personal Learning Environment. Retrieved from http://ritakop.blogspot.com/2010/07/extended-web-and-personal-learning.html
17. Krahl, C. (2010). Persönliche Lernumgebung vs. LMS. Retrieved from: http://www.plusminusr.de/blog/?p=322 
18. Lubensky, R. (2006). The present and future of Personal Learning Environments (PLE). Retrieved from http://www.deliberations.com.au/2006/12/present-and-future-of-personal-learning.html
19. MacLeod, I. (2007). Facebook as PLE - I Have Seen The Future! Retrieved from http://machianations.blogspot.com/2007/05/facebook-as-ple-i-have-seen-future.html
20. Martin, M. (2007). The Psychology and Skills of PLEs Retrieved from http://michelemartin.typepad.com/thebambooprojectblog/2007/06/the_psychology_.html
21. Martin, M. (2007). My Personal Learning Environment. Retrieved from http://michelemartin.typepad.com/thebambooprojectblog/2007/04/my_personal_lea.html
22. Martin, M. (2007). Seven Strategies for Supporting Personal Learning Environments at Work. Retrieved from http://michelemartin.typepad.com/thebambooprojectblog/2007/08/supporting-pers.html
23. O’Driscoll, T. (2007). Web 2.0 and Personal Learning Environments (PLEs). http://wadatripp.wordpress.com/2007/04/13/web-20-and-personal-learning-environments-ples/
24. Parslow, P. (2009). Vygotsky, ZPD, Scaffolding, Connectivism and Personal Learning Networks. Retrieved from: http://brains.parslow.net/node/1558 
25. Peña-López, I. (2010). Introducing the Hybrid Institutional-Personal Learning Environment (HIPLE). ICTlogy, (Vol. 81).
    Retrieved from http://ictlogy.net/review/?p=3389
26. Peña-López, I. (2010). Mapping the PLE-sphere. ICTlogy (Vol. 82). Retrieved from http://ictlogy.net/review/?p=3437 
27. Stierli, T. (2009) Personal Learning Environments in der Schule (#PLE09). Retrieved from: http://blog.bullino.ch/2009/03/14/personal-learning-environments-in-der-schule-ple09/ 
28. Siemens, G. (2007). PLEs – I Acronym, Therefore I Exist. Retrieved from http://www.elearnspace.org/blog/2007/04/15/ples-i-acronym-therefore-i-exist
29. Weller, M. (2008). An audit on where stand with PLEs. Retrieved from http://nogoodreason.typepad.co.uk/no_good_reason/2008/03/an-audit-on-whe.html
30. Wenmoth, D. (2006). PLEs and MLEs. Retrieved from: http://blog.core-ed.org/derek/2006/10/ples_and_mles.html
31. Wheeler, S. (2010). Anatomy of a PLE. Retrieved July from http://steve-wheeler.blogspot.com/2010/07/anatomy-of-ple.html 
32. Wilson, S. The personal learning environments blog. Retrieved from http://zope.cetis.ac.uk/members/ple 

Note: All online publications were retrieved between March and July 2011.