You might find this interesting... and thanks for the ping.
From the link:
http://www.freerepublic.com/focus/news/2907913/posts?page=28#28
FP: You interview someone who knew Obama at Occidental and says that Obama was an actual communist at Occidental.
Kengor: That’s right. The person is Dr. John Drew, who I’ve interviewed at length and remain in regular contact with today. He’s totally credible, no axe to grind, no story to sell. Drew contacted me because he knew I was researching Davis. Drew sees himself as the “missing link” between Obama’s time with Frank Marshall Davis and with later radicals like Bill Ayers and the Rev. Jeremiah Wright.
Drew himself was a Marxist at the time, and Obama was introduced to him as a fellow Marxist—as “one of us.” Drew told me about Obama’s belief in what Drew described as the “Frank Marshall Davis fantasy of revolution.” Drew, who was a more realistic, chastened Marxist, WAS STUNNED AT OBAMA’S UNWAVERING BELIEF IN THE IMMINENCE OF A MARXIST REVOLUTION IN THE UNITED STATES.
Drew is yet another first hand witness to Obama’s Marxist background that Obama has tried to cover up. It's also interesting that no one can come forward, or at least hasn't so far to distance Obama from these beliefs.
Unlike Dr. Sowell who's admitted his Marxist beliefs when younger and then denounced Marxism Obama has remained silent which in my view means he was a Marxist and still is.