X-Men

IMDb: X-Men
Cast and crew list, reviews, and production information for the animated series.
http://us.imdb.com/title/tt0103584/

Nabou.com: The X-Men: The Animated Series
Complete episode list with summaries and voice cast.
http://www.nabou.com/x-men/x-men_animated_series/index.html

Pazsaz Entertainment: X-Men Cartoon Series
This site features a cast list, an episode guide with a synopsis for each show, and some background on the X-Men and the series.
http://www.pazsaz.com/xmen.html

Wikipedia: X-Men (animated series)
You write the pages, as much or as little as you like, describing your favorite of all the episodes of X-Men: the Animated Series.
http://www.wikipedia.org/wiki/X-Men_(animated_series)

X-Men Animated Series
Episode guides to both animated series, character biographies, the shows' comic book background, some movie information, links and interactive fun are all covered here.
http://www.fortunecity.com/tattooine/replicant/70/xmenseries/