Psychotherapy:
http://apahelpcenter.org
http://depression.about.com/od/psychotherapy/tp/psychotherapy.htm

Anxiety:
http://www.nimh.nih.gov/health/publications/anxiety-disorders/complete-index.shtml

Depression:
http://health.yahoo.com/depression-symptoms/depression-symptoms/healthwise--aa25647.html

Pain management:
http://www.dstress.com/articles/cronic_pain.html
http://backandneck.about.com/od/chronicpainconditions/ss/chronicpaindepr.htm
http://www.healthpsychology.net/Pain_Management.htm