You're interacting with human beings.

It may seem obvious, but it is surprisingly easy to become disconnected from the human faces and feelings that lie behind Internet interactions. In fact, experts have noted that online behavior all too often starts to resemble what you sometimes see at rush hour in the middle of August on a gridlocked freeway, where normally courteous individuals suddenly engage in frenzies of horn-honking, yelling and gesturing from within the safe anonymity of their individual vehicles.

When you are communicating online, much of the feedback and enrichment that we take for granted in live conversations is missing. There are no facial expressions, gestures, or tone of voice to help communicate meaning … and misunderstandings are commonplace. That's why, particularly when dealing with emotionally sensitive or negative issues, a good rule of thumb is to count to ten before hitting "send." Always ask yourself, "Would I say this to Susie's face?" And remember to also give the other person the benefit of the doubt.

Adhere to real-world rules of behavior.

While there are a few new laws that regulate computer usage (see Spamming), for the most part the laws of the land apply in the web world as well. Be ethical. Be law-abiding. Enough said.

Pat attention to "local" customs.

As you discover new websites, chat groups, and online forums that offer personal and business opportunities, the best thing to do is watch and learn before you start participating. Some groups have clear rules laid out to guide you; others have only "unwritten laws" that are nonetheless important to know and follow. For example, passing along rumors and gossip is what participants expect in TV show discussion groups. The same behavior will be deeply frowned upon at a newsmagazine's bulletin board. Know where you are and who's listening, and adjust your approach accordingly. When in doubt, err on the side of "old-fashioned" good manners.