Rate Your Music (or RYM) is an online collaborative metadata database of musical and non-musical releases and films which can be cataloged, rated and reviewed by users. In RYM users rate and catalog releases, as well as write reviews, create lists and add artists and releases to the database.

FilmAffinity is a movie recommendation system where users rate, critique and categorize films and series. The system provides for registered users a list of users with similar ratings.