Contents:

Health and Medical Information, General
Mental Health and Mental Illness, General
Anxiety, Panic, Phobias, PTSD, OCD, and Depression
Stress and Stress Management
Biofeedback
Alternative Medicine
Seniors
Gay and Lesbian Resources
Psychology of Well-Being, Positive Psychology
Pelvic Floor Muscle Disorders
Professional Organizations
Recommended Books

Health and Medical Information, General:

Medscape, An excellent weekly e-journal covering the latest news and journal articles in medicine and mental health. Good resources. http://www.medscape.com 
National Library of Medicine of the National Institutes of Health, Scientific reports on health information. http://www.nlm.nih.gov

Mental Health and Mental Illness, General:

American Psychological Association site for information on emotional well-being and mental health.  http://www.apa.org 
National Institute of Mental Health, http://www.nimh.nih.gov 
National Alliance on Mental Illness (NAMI), http://www.nami.org  A grassroots organization of families helping people with serious mental illness and their families.

Anxiety, Panic, Phobias, PTSD, OCD, Depression:

Anxiety and Depression Association of America, http://www.adaa.org

Stress and Stress Management:

American Institute of Stress, Information on the role of stress in health and illness, http://www.stress.org

Biofeedback:

Association for Applied Psychophysiology and Biofeedback, http://www.aapb.org
Biofeedback Certification Institute of America (BCIA), http://www.bcia.org. This is the site of the national certifying body for biofeedback and contains the requirements for certification and also the directory of BCIA certified therapists.
Biofeedback Society of California, http://www.biofeedbackcalifornia.org

Alternative Medicine:

National Center for Complementary and Alternative Medicine. http://nccam.nih.gov

Seniors:

National Institutes of Health: Institute on Aging http://nihseniorhealth.gov
National Council on Aging, http://ncoa.org
Institute on Aging, San Francisco, CA, offers services and support groups for older adults and their children. http://www.ioaging.org

Gay and Lesian Resources:

An online and print directory of resources (businesses, therapists, organizations) for the gay, lesbian, bisexual and transgender community.
http://www.gayellowpages.com  

Psychology of Well-Being:

Exercises for increasing positive emotions, based on scientific finding, http://www.happify.com
Greater Good Science Center, U.C. Berkeley, http://greatergood.berkeley.edu/

Pelvic Floor Muscle Disorders:

Urinary Incontinence information from the National Institutes of Health, http://kidney.niddk.nih.gov/kudiseases/topics/incontinence.asp
Fecal Incontinence information from the National Institutes of Health http://digestive.niddk.nih.gov/ddiseases/Pubs/fecalincontinence/index.aspx
Excellent information on what the pelvic floor muscles are, their role, and disorders of excessive tension in these muscles:  http://www.aboutincontinence.org/PelvicFloor.html
International Pelvic Pain Society. http://www.pelvicpain.org
Pelvic Pain. Mayo Clinic information, http://www.mayoclinic.com/health/chronic-pelvic-pain/DS00571/DSECTION=3

Professional Organizations:

American Psychological Association, http://www.apa.org
California Psychological Association, http://www.cpapsych.org
San Francisco Psychological Association, http://www.sfpa.net
Association for Applied Psychophysiology and Biofeedback, http://www.aapb.org
Biofeedback Society of California, http://www.biofeedbackcalifornia.org

Recommended Books:

Dr. Shelley Diamond has assembled an excellent list of books on a variety of topics, such as relationships, illness, anxiety, aging, stress and resilience, sex and gender, etc.
http://www.drshelleydiamond.com/resources.html#books