Lately, I've gotten into older yuri(-ish) anime.
I've already watched Kannazuki no Miko, Revolutionary Girl Utena, Oniisama e... and Maria-sama ga Miteru, but I need more. It doesn't necessarily have to be an anime, manga and even light novels are also accepted (though I admit I have a lot of fun with bad old animation... Oniisama e was such a blessing in that department lol).
Genre doesn't really matter, though I'd like to see more with a school setting. Subtext and Class S are very much welcome (especially the latter —yes, I'm weird like that). The only requirement is for them to be old, really... or to at least have a sort of old-fashioned writing style. The one thing I'm not very keen on is mahou shoujo stuff: unless it is actual yuri or very heavy subtext (like, super duper heavy), and the relationship is very relevent to the plot.... Then don't bother recommending those at all.