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
Letterboxd - Letterboxd is a social site for sharing your taste in film, now in public beta.
IMDb - Internet Movie Database
Filmsomniac - Filmsomniac.com | TV Tracker | Movie Tracker
JustWatch - Compare prices of streaming for movies and tv shows.
Metacritic - Metacritic aggregates music, game, tv, and movie reviews from the leading critics. Only Metacritic.com uses METASCORES, which let you know at a glance how each item was reviewed.