Answerbag: User-submitted questions and answers on any topic whatsoever. Answers are rated, so users can see which answers and users are trusted.
Dr. Dave and Dr. Dee: Advice from M.D. and Ph.D. on health, family, relationships, etiquette, fashion, movies.
Dr. Phil: Official site of Dr. Phil McGraw. Includes a biography, events and tour schedule, online tests, a newsletter and contact details.
Go Ask Alice: Question and answers on many topics, with a health focus. From Columbia University's Health Education Program, with a searchable database.
Kids Help Phone: Provides help to children in Canada on a variety of issues, such as relationships, school, bullying, suicide, and abuse.
The Board of Wenches: A group of people who answer all non-trivial questions.