This is Steele's homepage at the Hoover Institution at Stanford University, where he is a research fellow. There, you'll find a photo of Steele, a biographical sketch, and some links.
This page entitled “The Ethics of Affirmative Action” from the Markkula Center for Applied Ethics contains some biographical information about Steele.
Here's Steele's biography from the PBS show Frontline's site. There, you'll find some information about Steele's relationship with that program, including the Emmy Award he won, and some links.