Google+ is now open to the public. The company has announced an open invitation for anyone who wants to join. Some users may think it took Google a long time to remove the invitation policy. But it was a smart move to do it now while Facebook stumbles with its upgrades.


Read More: Public Welcomes Google+ While Facebook Stumbles

Facebook might seem like a social media behemoth, but according to StatCounter StumbleUpon made up 47.11 percent of all social traffic in the U.S. as of July 2011.


Read More: StumbleUpon Logs 1 Billion Stumbles a Month