The document summarizes social media habits of restaurants and cafes in San Francisco. It finds that of the over 7,800 restaurants and cafes in San Francisco, 255 are active on Twitter, 165 have over 100 Facebook fans, and 86 restaurants made an average of $14.30 from each of the 110,124 customers they got through Groupon. The document encourages signing up for the Eyes and Feet application to view more analytics on competitors' social media activities.