Cyberwise.

I'm looking to network for business, and I've heard a lot about Twitter, Before I just jump in, are there any "rules of engagement?" I don't want to offend or scare off potential clients.

--M.B.

Newark, DE

You are right to be concerned. I am always amazed that smart professionals commit some of the most egregious errors online. And once you "tweet," that message never goes away.

Increasingly, companies, and individuals are using sites such as Twitter, Facebook, and Linked In to research potential employees or business prospects. Here are a few things to keep in mind:

* Do not "tweet" or post anything that you would be embarrassed to say in mixed, professional company. You can be personable without getting personal.

* Twitter, in particular, is about helping others. Shameless self-promotion is a big no-no.

* Don't pick a fight. If you disagree with someone, send them a respectful DM (direct message), rather than blasting them publicly. Or, you can just "unfollow" them. This might get them to reconsider their strategy. Conversely, if someone publicly blasts you, politely DM them rather than start a Twitter war. If you have offended them, apologize and move on.

* Don't spam your followers. Your success lies in the ability to effectively communicate in just 140 characters.

* Be mindful of whom you "follow" because that, too, can reflect on you.

For tips on getting started with Twitter, see: "Is Twitter a Fad or a Solid Business Tool?" in Techwatch, January 2009.