Russian? etext library. Like ProjectGutenberg, but rather bigger. Whereas ProjectGutenberg only posts copyright-free texts, Maksim Moshkow, the organiser of the MoshkowLibrary, asks Russian authors for permission to post their books - and usually gets it, if the book in question has already been on sale for a year or two. In addition to classics and fiction, it has a massive collection of modern SF+F, a pretty decent and up-to-date textbook section and so on.
Of possible interest to ToothyWikizens in that it contains a fairly large number of English translations scattered around.
Has recently been [given a grant] of 1M roubles (~£12k) by one of the bigger Russian publishers. Now *there's* a precedent I'd like to see taken up in the west.. - MoonShadow