http://socialnetworkingnews.org/this-week-in-social-the-twitter-iceberg-facebooks-internet-and-linkedins-new-tools/

Social media updates give new opportunities to social media users, who in turn shape the network, like Twitter.
Source: blog.hootsuite.com
See on Scoop.it – social networking

This Week in Social: the Twitter Iceberg, Facebook’s Internet and LinkedIn’s New Tools