Wondering how you are going to keep up with a large twitter conversation? Try this Twitterwall called Monitter. Many tweets fit on one page, pictures and names are large so you can identify the contributors. The multiple columns like Tweetdeck are smooth, making this quite functional to follow several 'backchannel' conversations. Displayed is http://www.visibletweets.com which prettier, but less functional for a high volume conversation (good for a guided discussion, with one tweet at a time). http://wiffiti.com presents 7 at a time which is also nice for focused discussion groups.