Twitter is a powerful tool to add to your marketing toolkit and to augment communications (inward / outward).  To help folks better harness this tool, here are my "Top 10" hints that I hope you'll find useful as well:

 Top 10 Twitter Countdown:

1. 140 Characters - make sure it's something easily understandable & adds value

2. RT - Return Tweet

3. #TAG (you're it)

4. @Tweet Site (referencing a 3rd party Tweeter Page in your Tweet)

5. TinyURL (with link to site and/or widgets for your browser)

6. Using Direct Messages (Viral marketing of your tweets with others)

7. Knowing WHO to follow and WHO NOT to follow (unfollow & block

8. Placing links to your Twitter Page in Email, LinkedIn, Blogs, & Websites

9. Referencing your other sites via Tweets (marketing yourself)

10. Mobile access to your Twitter Page (access/update your page from anywhere)

Here's a link to my tweets...