It's interesting to look at my Amazon recommendations to see what kind of person I am. I know it's based off of things I've purchased and my wish list, but still sometimes it's eerie to see how acccurate it is. Here are the top topics Amazon things I would be interested in:
Trucking
Techno music
Transaction analysis
Alternative music
Graphic novels and comic books
Showtunes
Science fiction
Meditation
Modern art
Punk music
Humor
British sitcoms on DVD
Gay-themed books and movies
UNIX books
Pop-up books
Math
Cartoons and anime
BDSM and leather sex
80's synth pop
Classics
Computer games
Men working (Dirty Jobs, Ice Road Truckers, Axe Men, Modern Marvels, et. al.)
Maybe I should just list all of these on any dating site that asks what I'm into.