The clerks of the Senate and the House are now maintaining Twitter feeds for each chamber. They’re not very exciting, but for a just-the-facts account of each day’s session—and the odd explanation of what’s going on—they can’t be beat. VaHouse and VaSenateofVirginia are their handles.
While I’m on the topic, we started incorporating Twitter into Richmond Sunlight last year. Legislators with Twitter feeds have a “Twitter” tab on their page (example 1, example 2) with their latest tweets included. And, of course, we’ve got our own Twitter feed.