Kids-In-Mind
Movie rating system for sex, violence and profanity.
http://www.kids-in-mind.com/

KIDScore
Rating System that looks at the content of media products in terms of violence, harmful or illegal behaviors, sex, age appropriateness.
http://www.mediafamily.org/kidscore/index.shtml

The Movie Mom
Offers information on new movie releases and videos. Nell Minow also offers a resource book - for purchae - to help select movies according to values they teach, such as honesty, courage, respect, etc.
http://www.moviemom.com/