Here are 10 instances where people combined activism and social networking to spark changes ranging from protection of ancient redwoods to the Arab Spring to playing poker online.
Continuing his longstanding use of social networks, President Barack Obama is set to do an interview in a Google+ Hangout on Jan. 30.
The Internet search leader is celebrating what would have been the 100th birthday of the Addams Family creator with a Doodle featuring his creepy, kooky, mysteriously spooky characters.
Analysis: Who are the tech turkeys of the year? Cringely has the answers -- and they're more fowl than you can imagine