this is an active research site  This short test is an on-line version of the  International Personality Item Pool representation of a  Five Factor Inventory and is part of a research project.	This is a  commercial site (surf at your own risk)
Yet another  commercial site (surf at your own risk)  More Personality tests	This one is mostly humorous.
This is a premium sight with links to tests, brain teasers, and games Online Tests of IQ and Personality