Nearly two years ago I did an unscientific analysis of NFL teams who were using Twitter and shared the stats I found at that time.  What a difference a couple of years make.

Courtesy of Mindflash, a company who focuses on best practices in motivating your people, this infographic goes into Facebook numbers as well as Twitter.  It really shows the growth of social media over the last two years in this one area of sports. It also shows the issues that can arise from unfettered social media use.