As we all know and have been discussing for the past two weeks, social media has been growing at a mind-boggling rate. But exactly how popular is social media? I just came across an info-graphic that answers this question. The info-graphic contains a summary of up to date statistics and facts about the popularity and growth of the largest social media sites of the moment. For example, did you know that two new people join LinkedIn every second? I found the info-graphic to be really informative and hope you do too.