http://www.psyweb.com/Mdisord/depd.html  This site contains information on different treatment interventions for DPD as well as some personality tests and other interesting information.

http://psychcentral.com/disorders/sx13.htm  This is mostly a summary of DSM criteria, but has some good information on a variety of disorders and treatment.

http://cms.psychologytoday.com/conditions/dependent.html  This site contains more of the basic information as well as links to articles in Psychology Today pertaining to DPD.