One of the most requested collections. I took some time to organize these by Grade level and are ready to be loaded into Calibre.I highly recommend you use Calibre to import the books so that you can transfer to your e-reading device. Files are best viewed on EPUB reading devices.
Grade: Preschool-Kindergarden

Look No Further! This huge list of iBooks (in ipub format ) can be added to your itunes book library (Updated August 2011). You just need to install ibooks from the app store (which is free).
Updated October 2011, includes:

Kindle MC (Master Collection), All ebooks (mobi/prc) as , organized.

Lots (376 in all) e-books on lots of subjects, but mostly on how to make tons of money selling e-books with distrubution rights.
I must have missed something because here they are for free.

"For over 20 years, biological scientists have come to rely on the research protocols and methodologies in the critically acclaimed Methods in Molecular Biology series. The series was the first to introduce the step-by-step protocols approach that has become the standard in all biomedical protocol publishing. Each protocol is provided in readily-reproducible step-by-step fashion, opening with an introductory overview, a list of the materials and reagents needed to complete the experiment, and followed by a detailed procedure that is supported with a helpful notes section offering tips and tricks of the trade as well as troubleshooting advice."

A wide-ranging collection of 115 valuable and insightful books concerning music in all its variety. Some special interest in classical music.

54 different movies about Cinema and Films.
Theoric stuff, how to make, create and interpret films

I have gathered all the COMPUTER related books of the Head First Serie.
They are 16 books total and i have gathered all the Code examples, solutions, answers, file per book.
The content is above:

Genre: Ebooks

Gardening Farming Ecology and Environment Books Collection (ENG)
Books include how to, analysis, and research for ecological and food growing systems:

This is my second Giant Collection of UFO eBooks on PDF Volume 2. Since my last upload I've found a bunch more. I made sure all books are different from the first upload. All of these except for a few can be easily converted to your ebook reader with Calibre or MobiPocket Creator. Half are crazy just like the first collection but they're still a blast to read. The rest are from highly respected authors who are experts in their field. Enjoy.