1. Nelson Molano Twitter: @nmolano http://facebook.com/nelson.molano [email_address] http://www.flickr.com/photos/34218149@N04/3231537836/sizes/z/in/photostream /

4. Fuente: http://encuentro2011.educared.org/photo/albums/finalistas-aula21

14. Fuente: www.interaccionesinteractivas.org

15. http://youtu.be/eZGX8DVIUXc

20. http://www.flickr.com/photos/57555728@N04/6095033124/sizes/m/in/photostream/

21. http://www.flickr.com/photos/loureiro/5603734403/sizes/z/in/photostream/

24. http://www.flickr.com/photos/7942866@N07/4435583307/sizes/z/in/photostream/

26. http://www.flickr.com/photos/estilodevidamiseravel/2958741007/sizes/m/in/photostream/

27. http://www.flickr.com/photos/americanistadechiapas/6397886451/sizes/m/in/photostream/

29. http://youtu.be/tY8GUvOfWqE

30. Nelson Molano Twitter: @nmolano http://www.facebook.com/nelson.molano [email_address] Licenciado bajo CreativeCommons 2.5 Colombia