GovTwit Directory? Exciting Times

"GovTwit Directory"
New Thinking (November 20, 2008)

"Looking for government agencies using Twitter or other social media? We want the GovTwit directory (below) to include all facets of government on Twitter: state and local, federal, contractors, reporters, academics, judicial branch and more. The list below will be a living list, and we hope to keep it updated via our own research, as well as your submissions...."

I recently set up a Twitter account (I'm Aluwir there), and found this while trying to find some specific Twitter accounts.

Looks like a pretty good resource.