Web 2.0

http://www.youtube.com/watch?v=KN11ZoDJXD4&feature=relmfu
http://www.youtube.com/watch?v=EqQq6Rjh82U
http://www.youtube.com/watch?v=7BAXvFdMBWw
http://e-research.pbworks.com/w/page/18452183/What%20is%20Web%202
http://www.youtube.com/watch?v=nsa5ZTRJQ5w
http://www.youtube.com/watch?v=6gmP4nk0EOE
http://www.youtube.com/watch?v=YXFYkbQRgY4
http://www.youtube.com/watch?v=QU9Rx8PeIEU&feature=related

http://fontfeed.com/archives/the-logos-of-web-20/