Florida teenager Trayvon Martin's tragic death has sparked the fastest growing online petition ever, several Twitter hashtags, and a single topic blog of journalist Geraldo Rivera wearing hoodies.

Last week, he was the director of a mega-successful viral video. This week, he has been the laughingstock of the Internet. How will this change the message of Kony2012?

Goldman Sachs executive Greg Smith's scathing resignation from the multinational investment bank has caused a stir online and inspired a number of parody letters.

This earnest review of a North Dakota Olive Garden has taken the Internet by storm resulting in a New York City publicity tour for the 85-year-old food critic Marilyn Hagerty.

A campaign to arrest the Ugandan guerrilla group leader Joseph Kony has gone viral, thanks to a video produced by the non-profit organization Invisible Children.