Trakt.tv - Automatically track TV shows & movies you're watching.
Flixster - Share movie reviews and ratings with friends.
Showly - Showly is a free and open-source TV shows tracking application that is created with the help of TV show lovers.
Filmsomniac - Filmsomniac.com | TV Tracker | Movie Tracker
Simkl - Simkl is a TV, anime, and movie tracker that keeps a history of all the shows and movies you watch in one, central location. It’s a mobile app, a website, Google Chrome extension to keep track of everything you watch and integrates with many TV apps
IMDb - Internet Movie Database