Aldon Hynes told Kevin that, by 2012, Twitter might be old hat. He's probably right. Look at this guy who put comment on one of Caroline's posts. He's using something called Ning, which seems to be able to tie a bunch of things -- including Twitter -- together. Aldon probably knows all about Ning. It, or something like it, does look like a pretty effective organizing tool.
UPDATE: Harry found this list of tweeting conservatives. The "ten things to do" list is a pretty simple guide to how to use Twitter to build a network.