Twitter Tips - 5
This tip will help especially if you want to target your tweets locally.
1. Add your tweeter account to this directory - http://localtweeps.com/
2. Use it to find followers in your zip code. Want to expand a bit then get people with zip codes close to you. You can find a zip code map here - http://maps.huge.info/zip.htm - make sure to click on the map.
Enjoy your Weds.