Scribd has a huge collection of useful ebooks you can download in a variety of formats. Here's a couple:
US Army Survival Field Manual
www.scribd.com...
USMC Water Survival Course
www.scribd.com...
The Worst Case Scenario Survival Handbook
www.scribd.com...
And just for kicks:
The Zombie Survival Guide: Complete Protection from the Living Dead
www.scribd.com...
Dear god am I glad I'm not a writer. Scribd will not be kind to the publishing industry. If it ever catches on that is.

