Blogs
Al-Kafir Akbar!
http://kafirakbar.blogspot.com
Al-Kafir Akbar! upholds rational secularism specifically from the perspective of Objectivism. Reason, individualism, science, free markets, limited government - and, ultimately, the greatness of man's mind - are what this blog defends against their enemies, be they supernatural or secular. (And I believe in having fun while doing so!)