I get quite the education from watching anime/reading manga.
Historical (e.g. Peacemaker Kurogane, Hetalia) and themed anime (e.g. Yakitate! Japan, Eyeshield 21), in particular were the catalysts for hours of voluntary research.
Interesting anime which rouses the fangirl within also results in web trawls for fanfiction and fanart (though mostly the former). I'm always looking for a good read, so if you have recommendations for a common fandom, let them loose here! =D
I'm open to most genres and types of Anime since every Anime provides a different experience (and subsequently, fandom).
Beyond that, I'm just a semi-retired fangirl on the lookout for more obsessions. =)