One of my favorite theologians is Greg Boyd. He's also a pastor and author. I've recommended his book, "The Myth of A Christian Nation" and consider it one of my top 5 favorite books. I think every Christian should read it--especially as we approach an election.
Greg has also recently created a new website where he blogs and keeps a list of topics for Q & A. I have enjoyed reading through the questions and Greg's responses and I think many of his ideas would benefit other Christians. So, here's a link to Greg's Q & A page: http://www.gregboyd.org/qa/
From this page, you can access all his other pages. Anyway, I hope you find it as helpful and thought-provoking as I do.