• Mention your Twitter profile under your e-mail signature.
• Do not sell products through your tweets.  Selling is a natural process in Twitter. Just keep sending your best shots (tweets) Build relationship with your followers. They will sooner or later buy from you if they trust you and perceive you as an authority.
• Make sure you follow the right people. Use Twitter Search to find the like-minded people.
• Think Twitter as a miniature blog. Even though you may use it for fun, do not forget to take it seriously for certain periods of the day.
• Think of it as a golden opportunity to pre-sell your blog posts without actually selling anything.
• Try to write the best tweets you can come up with. Don’t be shy; give people the URL to your blog in your profile.Don’t push them so much. Let them decide whether they want to read more or not.
• Someone can come across your profile, take a quick look at all your tweets and decide whether they want to follow you or not.
• Think of each tweet you send out as a headline. Try to grab attention of the people who are  reading your tweets.
• Think about some creative ways that you can get people interested in you and your tweets.
• Try keeping your tweets on what’s going on in your business, especially online business. This way you will become known as someone who provides a regular insight into that area, and people will start to look forward to your tweets.
• Share your new blog posts.
• Ask questions to your followers.
• Find your own voice (very similar to blog voice)
• Use keywords in your profile so that people can find you and your business via Twitter Search online.

These are my Twitter tips. Please do not hesitate to share If you have other tips that are useful to me and my fellow readers.