I looked into all this in 2008. As I recall, the Annenburg Challenge was a board on which Obama served with Bill Ayers. Its purpose was to set curriculum in the schools.
Obama also served on an entity known as the Woods Fund. Through that he funneled money to Khalidi of Harvard. That info was confirmed to me by a Wall Street Journal reporter.
Wall Street Journal? Or he may have been with the Christian Science Monitor. Either way, he confirmed that.