Group items tagged

Web analytics for free, from Google - Track web traffic, sources, keywords driving traffic

Google Moderator allows crowdsourcing of ideas - allow the crowd to decide which ideas are best, and how best to refine them

Measure influence - in this context, a user's ability to move content across the social web.  Measures FB, Twitter, Linkedin and Google+ (with ither networks providing limited influence on scores)

Sprout Social - Social Media Management and engagement console - measures engagement, follower growth, and integrates with Google Analytics (Paid)

See users social profiles and more about them, from within Gmail - displays alongside incoming email