“Here are some tips on how to use Twitter effectively–and a few cautions, as well.

1. Don’t automate it
2. Be conversational
3. Follow people who are relevant
4. Make sure your people are on Twitter, and refer to them
5. Answer your mentions
6. Search for your name
8. Use Twitter to ask your customers questions…and get good answers
9. Be a good Twitter citizen”

You can read the details by going directly to the article at PC World: Twitter for Businesses.