Keep track of the films and TV show episodes you have seen. Follow shows and have your own TV calendar, and never forget your favourite TV show episodes.
IMDb - Internet Movie Database
MovieLens - MovieLens helps you find non-commercial, personalized movie recommendations.
Flixster - Share movie reviews and ratings with friends.
RightWingTomatoes.com - Movie review aggregator from anyone right of center. ( A rightwing / Christian alternative to Rotten Tomatoes. )
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
FilmGator - Get ideas for the next movie to watch or see how your friends liked the movie you heard about. Come back afterwards to rate it and add it to your timeline. Simply put: FilmGator – Between Movies!