The Suicide Prevention Resource Center (SPRC) offers a wealth of online resources to those who are building a campus suicide prevention program.
Suicide.Org is an online resource with some very good handouts that can be reproduced for use with college students.
Jed Foundation promotes increasing our understanding of suicide in young adults and effective suicide prevention & intervention practices on campus. They offer guides to mental health action planning and a framework for creating an institutional protocol for assisting acutely distressed and suicidal students.
American Foundation for Suicide Prevention (AFSP) is a broad-based organization that supports research, education, and public awareness about suicide prevention.
The National Action Alliance for Suicide Prevention is a public private partnership dedicated to advancing the National Strategy for Suicide Prevention.
National Suicide Prevention Lifeline offers free confidential support for those experiencing suicidal thoughts or emotional distress 24/7.
Best Colleges suicide prevention webpage offers a comprehensive list of facts and resources related to college suicide prevention.
The AESCHI is an international working group that is developing and promoting a client-centered and narrative approach to working with suicidal folks. They have a PDF file that offers clinical guidelines.