Dares can be many things, but they are ultimately designed to make you uncomfortable. Here is a list of the types of dares, and where you can find them!
1) Disgusting Dares: Dares where you eat, drink, do, touch, or smell something disgusting. Ex. Wetting your pants, smelling a shoe, or eating poop.
Visit
http://www.getdare.com/bbs/showthread.php?t=259 for good disgusting dares.
2) Embarassing Dares: Dares where you say something stupid, or do something stupid in public. Ex. Repeating some stupid phrase, or streaking.
No Examples On Site
3) Painful Dares: Dares where you do something that causes you pain (duh!) Ex. Wedgie, clothespins on the nipples.
No Examples On Site
4) Sexual Dares: Dares that involve members of the opposite sex (normally) and invole things that involve sex
FOR MATURE PEOPLE ONLY Ex. Masturbation, oral sex, etc.
Visit
http://www.getdare.com/bbs/showthread.php?t=243 for some good sexual dares.
5) Miscellanious: Dares that dont fit into the other categories!