The World Digital Library will launch on April 21, 2009.
Here's an excerpt from the press release:
UNESCO and 32 partner institutions will launch the World Digital Library, a web site that features unique cultural materials from libraries and archives from around the world, at UNESCO Headquarters on 21 April. The site will include manuscripts, maps, rare books, films, sound recordings, and prints and photographs. It will provide unrestricted public access, free of charge, to this material.
The launch will take place at a reception co-hosted by UNESCO Director-General, Koïchiro Matsuura, and U.S. Librarian of Congress, James H. Billington. Directors of the partner institutions will also be on hand to present the project to ambassadors, ministers, delegates, and special guests attending the semi-annual meeting of UNESCO’s Executive Board.