StarDestroyer.Net BBS

HELP I am looking for a good e-book or any good site on digital design. Our faculty has chosen the book of DIGITAL DESIGN by M. Morrris Mano (4ED). I'm looking for more examples and detailed explanation. If anyone know any e-book please send me the link.

Moved this to what seems to be a topic-appropriate forum, with a reminder for affran and anyone else who needs it not to share copyrighted e-books here. Open-license stuff is fine, of course.