For those who are interested in the social and psycological influences of the Internet on culture. This site would focus on subjects such as memes, trends (and their origins), cyber-etiquette, ethics, bullying, and virtual identity.
For railroad enthusiasts interested in designing, building, and operating model railroads of all scales (N, HO, O, Lionel, Live Steam, etc.) as well as manufacturers of miniature motors, engines, etc.