Do you like the questionnaries on this site? Then you'll love the ones over at Authentic Happiness. It's a site founded by Dr. Martin Seligman, a pioneering researcher in the field of Positive Psychology, which is the empirical study of such things as positive emotions and strengths-based character. Registration is required, but it is free and easy, and there are few better places on the internet (besides maybe here?) to develop new insights into your own personality.

Our favorite surveys on the site are the Brief Character Strengths Test and the VIA Character Strengths Test.