John McMillen is CIO for Graves County Schools. He blogs at Techucation, where he shares tips on Web 2.0 and social media tools. He's on a mission to make sure schools don't keep their heads in the sand when it comes to such technology.
Tim Davis is CIO for Popeyes Chicken & Biscuits. He seems to get to quite a few CIO summits and tech events on such topics as cloud computing to keep up on things. He's the proud recipient of the 2008 Georgia CIO of the Year Award.
Bruce Maas is CIO for the University of Wisconsin-Milwaukee. He Tweeted recently that he sees a silver lining in the tough economy: "Talked with CIOs today in other parts of country. This economic crisis looks like it may bring about needed focus. I see positives."
Jeffrey Brandt is CIO and Knowledge Officer for a law firm in Washington, DC. He not only takes part in social networking, he presents on it, according to one recent Tweet.