Dosh Dosh has just written an excellent piece on how to get more Twitter followers. He cites a lot of reasons, but drives it down to the power of your brand. Still, even if you're not a powerful brand, you can benefit from Twitter in the same way that many popular web celebrities do. For example, if you create a tool and promote yourself with it, you can gain a lot of followers. You can also use your website real estate to link to your Twitter profile, such as through banner ads, a Twitter link, and more.
Additionally, your friends can vouch for you or you can run contests. Really, the possibilities are endless and Dosh Dosh touches upon the surface. Your creativity doesn't have to run out with this one.
The article is a must-read (and so is the blog), and forum members think so too. :)
Forum discussion continues at Sphinn.