First off, let me tell you about MAL (www.MyAnimeList.net):
This is an impressive and big Anime community where you can make your own list of the series you have watched,
plan to watch, what episode you are at, set a score for each etc.

You can make your own personal profile, blog, make and join clubs about anything, search the anime/manga/people database,
reviews, shared Anime with other users, and a bunch of stuff.

There are around 80.000 registered users at the moment.
There's so much to explain that I can't possibly cover it all here, so better check it out yourself: www.myanimelist.net/

Once you have an account and made a list there, you can then start using this application: Mal Updater