When I was pregnant and after my son was born (he's 16 now) Joan had a show called "Mother's Day" that she hosted and her (then) husband Michael Krauss produced for Lifetime TV. It was really quite good - very informative and down-to-earth. She always had a guest that was an older man - a pediatrician named T. Barry Brazelton. He specialized in child development and was a foundation of our child raising.
She's also very active as a spokesperson for MADD, and personally I really like the TV show Behind Closed Doors because I know those doors will never be opened to me and she visits some really cool places!
I wouldn't say I'm a wild fan of Joan's, but I do admire at least the pretty 'normal celebrity-type person she seems to be.