I understand that you're looking for experienced bloggers to contribute to Big Think, and I'd like to be considered. I've served as chief blogger for the CNET startup Politicalbase.com and riight.com, and my work has appeared in National Lampoon, The Onion A.V. Club, American Atheist, McSweeney's, and dozens of other literary journals, trade publications, and general interest magazines. I've also served as a copywriter for a couple of ad agencies as well as online media outlets like America Online. My first book, Flock of Dodos: Behind Modern Creationism, Intelligent Design, and the Easter Bunny, was released last March to praise from Alan Dershowitz, Rolling Stone, The Huffington Post, and other sources.
Let me know if you if you'd like to discuss this further.