Thanks, lljn - more Twitter stuff

lljn writes

Maybe you have a personal blog and you want to be that cool kid on the block with tons of traffic and an insanely high web hosting bill. Or perhaps you work for a company that wants to take advantage of that crazy new website for all those crazy hip young people. Either way, these are the best tools for promoting your site, your message, and yourself in the Twittersphere. (And they’re all free!)

Not only are his summaries helpful, but the links go to some other great references. Check it out (and follow the links)!