Personalityresearch.org - Tests
- Emphasis on free, on-line, professional tests that provide feedback.
- http://www.personalityresearch.org/tests.html

Self Network
- Tests and quizzes for mind, health, spirit and love life.
- http://www.selfnetwork.com

SimilarMinds.com
- Personality test site and community offering several options: Jung, Big Five, Word Association, Enneagram, and an Ask the Oracle feature.
- http://similarminds.com/

University of Life
- Ranging from serious IQ tests to the Sexual Color Test.
- http://universityoflife.com/

Barbarian's Online Tests Page
- Directory of over 190 online and downloadable tests, covering career choice, personality, intelligence, relationships, and lifestyles.
- http://www.wizardrealm.com/tests/

Personality Tests
- Directory of surveys of varying psychological validity. Short description and estimated time of completion for each.
- http://www.2h.com/personality-tests.html

Megapsy Online Tests
- Explore facets of your personality.
- http://www.megapsy.com/english/catalog.htm