If you post things using the "Trending Topics", that are related to that topic, you should receive followers. I have 12882 tweets, with 688 followers, without paying anything.
Post Quality Content, Follow people in your niche, etc. so much stuff to do check the URL in my signature good information
You need to offer other members of Twitter something interesting. Give them advice, cool links, just something to make it worth their while to follow you. Twitter is really just a big delusion, it's not very difficult to get tons of followers you just need to know where to go
Here's what to do. first, find an internet marketer on twitter with a lot of followers. I used Mike Dillard. Then, send follow requests to AS MANY of those people as you can. If you can get to 1,000 you'll be in a pretty good boat. Generally, you'll get between a 60 - 80 percent re-follow rate. That'll get you 600 - 800 followers. From there, start looking for viral twitter programs that put you on lists so that other people looking to increase followers will be able to add you. That's gotten me around 1,200 followers. JMM
If you don't have a bloggin platform, you can try twttrblogs.com It's bloggin for Twitter. Write something in a blog and hundreds of Twitter accounts get updated within an hour. Your Twitter link will be on your blog page, instant traffic.