I don't know if the google library it charges access to is usable by screen readers or not, but the two ebooks I downloaded from them, both of which were free, were simply scanned images of the paper book nicely bundled into a (I'm sure) pretty looking pdf file. Unfortunately, that kind of thing is completely useless to visually impaired folks who depend on screen readers for their text, since there's no text on the page, simply an image of text. Thus, Google's claim that they're creating a library for "all" is erroneous. I doubt this sort of thing will change, but it sure would be nice if they'd actually include a readable version of the book, since obviously they have it in a real text form, or else their search engine couldn't index the silly thing. Stupid if you ask me, but since nobody did. ...