Obama joins Google+

Google+, the Internet search giant's rival to Facebook, has a high-profile new member: US President Barack Obama.

Obama to hold Twitter town hall meeting

US President Barack Obama will hold a "Twitter town hall" meeting next week at the White House on jobs and the economy as he hones his message on the key 2012 election issue.

Obama turns to social media again for 2012 bid

US President Barack Obama launched his reelection campaign with a social media barrage Monday, turning once again to the online tools that helped propel him to the White House three years ago.