TV That Rocks - Track, discover & build collections of your fav TV Shows
Trakt.tv - Automatically track TV shows & movies you're watching.
Whataired - ith WhatAired you can create your own, personal, tv guide that reminds you every day which of your...
TeeVee - Your TV show guru - track what you watch
Geobird - Discover and share with the world in a new way
SERIST - Your personal TV show tracker