Goodreads - See what your friends are reading.
AniList - AniList is a tool to track and record your progression in anime and manga, featuring multiple...
Readernaut - We are a small community of readers, sharing our adventures and supporting each other as we persue a life of learning.
Kitsu - Kitsu is the easiest way to track, share and discover new anime and manga.
aNobii - aNobii is a social network for listing books, sharing insights, and meeting people.
AniDB - AniDB is a non-profit anime database providing you with all information regarding anime.