how popular is online support groups and do they really work?

Answer 1

From what I know they are fairly popular. I know that a friend of mine is a member of a codependant online support group. It seems to help her. As to how well they work, well that is going to depend on you.
Whenever a person has a problem or issue in his/her life, it will only get better if you are willing to do the personal work that is needed to correct behavior, etc.
Good luck and God Bless!