Google Book Search allows you to instantly search the full text of over a million digitized books, but we thought that wasn't quite enough. Now when you search you'll get both digitized book results as well as records for millions of other books that still just exist in the analog world.
When you view these new added book records, you can often read reviews, a summary, or see what other people had to say about the book around the web. Since these books haven't been digitally indexed yet, you can't preview the text online, but if you've discovered something great, we offer links to buy the book or find it in a library near you.
We're doing this because we want to offer users the most comprehensive book search in the world - whether it's a book you can read online now, preview samples, see a few snippets, or just read what others have written about the book. We're still very busy digitizing millions more books, but want to make as much discoverable as possible today.
The open access movement:
Putting peer-reviewed scientific and scholarly literature
on the internet. Making it available free of charge and
free of most copyright and licensing restrictions.
Removing the barriers to serious research.
I recommend the OA tracking project (OATP) as the best way to stay on top of new OA developments. You can read the OATP feed on a blog-like web page or subscribe to it by RSS, email, or Twitter. You can also help build the feed by tagging new developments you encounter.