Project Implicit, Implicit Association Test
The Implicit Association Test (IAT) measures attitudes and beliefs that people may be unwilling or unable to report. The IAT may be especially interesting if it shows that you have an implicit attitude that you did not know about.

"White Privilege: Unpacking the Invisible Knapsack", by Dr. Peggy McIntosh, Peace and Freedom Magazine, July/August, 1989, pp. 10-12.
Test yourself using the White Privilege Checklist.