Facebook has a large amount of funny but not very reliable personality test, where you can generate a profile and compare with friends.

Top facebook personality tests:

1. Dr. Phil’s personlity test                                      633.913                    1,8            4.369
2. What color are you?                                           918,088                   2,2           2.543
3. Which president are you?                                    326,715                   2,7           1.200
4. What is your personlity type?                               674.931                  2.5              564
5. My personality                                                    308,420                   3,7           8.974
6. My Type Personlity                                                40.983                   4,2           1.100
7. What Career is most suitable for your pers.           32.901                   2.0              169
8. Personality Patterns                                             10.745                    3.1           1.955
9. What college best suit your personality                 12.715                   1.3              394
10. The Ultimate Personlity Quiz                                 11.219                   3.1             377
11. What is your personality like?                                25.751                   5.0*             26
12. My Meyer Briggs Type Indicator (MBTI)                     1.017                   2.0              653

Where can I try free Facebook tests?
LeaderLab is developing a Facebook application with a little more substance it should be out this summer, until them visit them at: www.leaderlab.com