Google Books Announces Downloads
As announced on their blog, Google now lets you download the classics in pdf form. The problem is that even if you used the advanced book search, you can't search exclusively for books that are downloadable. For example if you search for Shakespeare and specify that you only want full-view books, you get this list, which doesn't tell you that the Ingersoll, Wells, Way and Tolstoy works aren't downloadable.

Strictly speaking, not everything is a classic either, but that's a pointless quibble.