Free Kindle Books and Tips:
I have found this AP/Website a great source of free eBooks for my Kindle & Android. I generally view it using the Android AP.
I actually find more books of interest than I have time to read. Frequently they are the 1st book of a series with the hope that if you like the first book you will purchase more books in the series. Some are offered free for one day only while others may be offered for a week or more. Occasionally Games or puzzles are offered.
Free Kindle Books by Genre: Website
Project Gutenberg - Pre 1920's classics and other early books. Available in multiple formats including Kindle. Some audio also available
Internet Archive - Not only books but audio, video and much more.
Open Library - Mostly scanned books. ePub & PDF. Best read on iPad, Tablet or Computer.
ManyBooks.net - Many formats similiar to Guttenberg but some contemporary books if you look for them. - Has Cory Doctorow books
Just Google "Cory Doctorow free eBooks" for links to more of his books. You can also buy the latest releases. The library has his books in print.
Axis 360 eBooks
To download an eBook you will need to set up accounts. Students and faculty should check their email for instructions that were sent.
E-mail the librarian to send them to you again if you lost the instructions.