So far the most popular one's I've found are: money - 1424 Marketing - 1336 sex - 1254 Socialmedia - 1224 twitter - 919 facebook - 871 Obviously the higher the group numbers, the more likely you are to get liked or followed. Choosing the highest groups will make your likers/followers untargeted but when you're just trying to add numbers this is the way to go. Has anyone else found any large interest groups?