MedicalStudent.com is a digital library of authoritative medical information for all students of medicine. It contains over 250 medical textbooks arranged alphabetically in topics from Anatomy to Urology. Each textbook included is free to use, in part or in whole.

Project Gutenberg is a library of over 60,000 free eBooks. Choose among free epub and Kindle eBooks, download them or read them online. You will find the world's great literature here, with focus on older works for which U.S. copyright has expired. Thousands of volunteers digitized and diligently proofread the eBooks, for enjoyment and education.

Open Book Publishers was founded in 2008 by a small group of academics at the University of Cambridge. It offers online digital editions free of charge so that students, researchers and members of the public who cannot afford a printed edition can still have access to quality research.