Anxierty Disorders Association of America

This website provides useful information about the diagnosis and treatment of panic disorder.
https://adaa.org/supportgroups?title=panic&field_sg_state_value=All

Psych Central

This website lists online support groups and resources for treating anxiety and panic.
https://psychcentral.com/resources/Anxiety_and_Panic/Support_Groups/

American Psychological Asociation

This website answers some of the most common questions about the symptoms, causes and treatment of panic attacks.
http://www.apa.org/topics/anxiety/panic-disorder.aspx

Psychoeducation

Describes the cognitive behavioral and medication treatment options for panic disorder.
http://www.psycheducation.org/anxiety/panic/introduction.htm

Support Groups

This is a list of support groups in the United States for axnxiety disorders. It was compiled by the Anxiety Disorders Association of America.
http://www.adaa.org/finding-help/getting-support