5. What People Do on the Web By Age http://images.businessweek.com/mz/07/24/0724_6insiid_a.gif Lic. Juan Carlos Luján [email_address]
6. Lic. Juan Carlos Luján [email_address] Fuente: ShiftedPixels.com http://www.shiftedpixels.com.au/blog/2008/08/social-network-popularity-around-world.html
7. Lic. Juan Carlos Luján [email_address] http://www.google.com/insights/search/#q=facebook&date=today%2012-m&cmpt=q