Erik Qualman from Socialnomics recently published a new video that shows the power of social networks today. The most stunning fact, to us, is that social media has surpassed porn as the top activity on the web. The video, which lists a number of compelling facts, also said that — in the United States — Facebook gets more weekly web traffic than Google. Similarly, 20% of all divorces are now being blamed on Facebook. Have you ever thought about taking a class online? This stat may pique your interest: a recent study revealed students who take classes online have out performed those that enroll in face-to-face instruction. Hit the jump for the video for plenty more on socialnomics.