The Rotten Library - "an unforgettable collection of all that mankind swore to forget, but which we have trapped in agonizing clarity to remember always."
On-Line Theological Manuscripts - an extremely curious to select few resource of theological writings from the medieval times.
Manybooks.net - free books for your PDA (over 10000 books)
International Children's Library - A project of the University of Maryland. Over 600 childrens books available for reading online.
Languages include Maori, Arabic, Dutch, English, Tagalog, Finnish, French, German., Hebrew, Italian, Japanese, Khmer, Macedonian, Niuean, Farsi, Potuguese, Russian, Samoan, Serbian, Shona, Spanish, Swahili, Swedish, Tongan, Vietnamese & Yiddish.
Design Books - Rare and interesting books on design (in it widest understanding), in English and Russian. Many are very heavy due to their illustrated nature. Ist is a live journal community, so having an LJ account is recommended, altho is not obligatory.
Библио-течка - Книг немного, но довольно любопытный выбор авторов.
NowhereMan - A nice source of English language books
Skin Music 