how can you use Twitter for business? Twitter is an excellent tool for linking and this is the real value for businesses.
Twuffer - Twitter post scheduler. It is easy to lets you select a posting schedule by day and time. If you are pushing content on a service or product, this is an excellent tool to use. Set your Tweets up one week or one month at a time and feed your content to readers in addition to your regular Tweets. Make sure to use www.TinyUrl.com to change any long URLs you point to in the Tweet to a Twitter-friendly short version to save space.
Twitter Feed - TwitterFeed allows showing blog posts from "The Web Authority" directly onto Twitter. It also allows posting Tweets back on the blog (by installing a widget) in my blog template.
Twitter Grader - This one is a vanity application that allows you to see where you stack up against other Twitter users. Twitter Grader measures the power of a Twitter user based on followers, number of updates, and posting frequency.
TweetBeep - With this application, you can manage your online Twitter reputation. Alerts will be emailed to you whenever a Twitter user Tweets about your business, name, or domain. You select the alert criteria and what to watch for using TweetBeep.