Update: 05/05/2011 - Barack Obama - Facebook - Google - Osama bin Laden - Twitter
Bin Laden's death marks 'Twitter Moment'
The killing of al Qaeda leader Osama bin Laden on May 1 sparked a massive surge of online traffic across search engines, social networks and most notably micro-blogging services. More than anything else, the event highlighted the growing importance of the Web at times of breaking news.
TECH 24
link-
http://www.france24.com/en/20110504-2011-05-04-twitter-moment-facebook-osama-bin-laden-obl-obama-internet