National Coalition for Homeless Veterans

"The resource and technical assistance center for a national network of community-based service providers and local, state and federal agencies that provide emergency and supportive housing, food, health services, job training and placement assistance, legal aid and case management support for hundreds of thousands of homeless veterans each year."

Their website includes resources for Veterans:

National Center for Post-Traumatic Stress Disorder

The National Center for PTSD is a part of the U.S. Department of Veterans Affairs that conducts research and seeks to educate the public on the prevention, understanding, and treatment of PTSD.

Includes "Returning from the War Zone" guides for military personnel and their families: