A lot of Gutenberg books, a lot of science fiction from Feedbooks. I've also been playing with ePub convert software and have been making ePub "books" from vari

A lot of Gutenberg books, a lot of science fiction from Feedbooks. I've also been playing with ePub convert software and have been making ePub "books" from various plain text sources. I also went on a late 19th and early 20th century math and geometry book binge a while ago and downloaded a _ton_ of titles from Google books. A lot of them were available in both ePub and PDF format. Most of the reference titles I have are in PDF format, though. I've been using a couple of different PDF readers on the iPad, none of which do everything that I would like. When the new iBooks comes out for the iPad, I'll give it a go as a PDF reader as well. The amazing thing is that _all_ the books on the iPad, all 1000+ spread across several programs, take up less than a Gig.