Books

• http://www.openculture.com/free_ebooks
• http://www.gutenberg.org/
• http://www.epubbud.com/
• http://www.free-ebooks.net/
• http://www.booksshouldbefree.com/

Comics

• http://comicsall.net/
• http://www.comixology.com/ / http://www.bleedingcool.com/2013/03/24/five-hundred-and-twenty-five-free-digital-comics-from-comixology/
• http://newcomic.org/
• http://comicrack.cyolito.com/links