There are many repositories and Open textbook initiatives that keep an updated list of open textbooks and open learning objects.
Some do. Like commercial textbooks, some open textbooks have ancillary material.
It depends on the book--but what is great is that with an open textbook you can update the information yourself! An instructional designer might be able to help.
A librarian is available to help you with the technical support of editing an OER. There are also many groups and tutorials on the Internet.
It will take time to adopt an open textbook, but it has many similarities to adopting a new publisher's textbook. A librarian can help you in this transition process.
The best way to see if a book is "good" is to review it yourself! The books are free online, and many repositories have reviews online.
It depends on the book, but many books have on-demand online print services. Students may also print out the parts they want themselves.
Come to the library to talk to us about requesting permission from the copyright holder to use a chapter of a book for your class! Or we can find a suitable alternative.