Psychology organizations:
American Psychological Association
California Psychological Association
California Association of Marriage and Family Therapists
Science & practice of psychological testing:
American Educational Research Association (AERA)
Center for Personnel Assessment and Selection (CPAS)
Eric Clearinghouse on Assessment and Evaluation
I created a project called Open Public Polls, where you can explore public opinion polls on topics like psychology, money, work, and relationships: OpenPublicPolls.com