http://www.yourpotential.net/3/7/The_Codependant_Relationship_Questionnaire.html

Take this quiz..It was an EYE OPENER for me!!!! I did not realize that the things that I was doing that I felt were beneficial were actually co-dependant behaviors! I think I may start reading up on this..the fact of the matter is, the more confident I am with myself the more I am able to overcome my issues with co-dependacy.

And here is a good site as well
http://www.recovery-man.com/coda/symptoms.htm