1- Thou shalt not treat Facebook as your God. Facebook has received a tremendous amount of press, but it is still essentially a way for people to share pictures.
2- Thou shalt not believe everything you read online. Case in point, networks announced that Representative Gifford's was fatally wounded based upon an anonymous source on Wikipedia. The thing that is great about the internet, access for all, also makes it quite likely that you will occasionally read something that is totally nonsense, such as a Twitter feed from Sarah Palin. Likewise, don't assume you know someone if the only impression you have of them comes from what they post online. The person is letting you see the parts of them they want, sort of like an iceberg, much more is below the surface.
3- Thou shalt not take thy spouse or bosses name in vain online. The same norms of social etiquette that have applied to people for ages apply to your online posts. If you are mad at your boss or your ex-lover, tell it to a few close friends if you must, but don't post it online. It's sort of like Eddie Vedder getting drunk and getting on the mike at a Baseball stadium. Just because you can do something doesn't mean you should.
4- Remember the sabbath- Once a week, turn off your phone, computer, etc. and take a walk. See the sky, the trees? Smell the air? See that cute guy/girl on the bus who isn't listening to his/her Ipod or texting on his/her smart phone? Strike up a conversation. Sure it feels weird for a bit, but isn't it ten times more interesting than anything you've read online for the last, say 2 years? You know it is.
5- Honor thy father and mother. Remember when you friended your Mom on Facebook? Remember that post you just made on FB "got real drunk last night and masturbated to pictures of your mom?" Your mom and your Grandmother just read that.
6- Thou shall not murder your career. It's nice that you have a cool job where you can get drunk at work. It's fun to post pictures of you using a beer bong in front of your work computer. A small disturbed sub-group of your friends are thinking about following you on Twitter. Even if you delete it later, it lives on a server somewhere forever, and it can come back to haunt you. Do you think this is going to be your last job? Do you think potential employers might do a Google search on your name? What if drinking at work is not so OK with them? Go ahead, roll the dice.
7-Thou shalt no commit adultry (even if its all in your mind). If you are married or in a committed relationship, don't say anything in a chat or private message that you wouldn't post on a wall on FB. If the message you are getting ready to send to your daughters hot friend does not pass this test, stand up, back away from the computer and do 25 sit ups. It can never hurt.
8- Thou shalt not steal intellectual property. If someone has blogged it, played it, painted it, drew it, or twittered it, it's their property. You can probably get away with using that photo you like on your album cover if you photo shop the shit out of it, but don't use it unless you get permission. See the last sentence of commandment three for the reason.
9-Thou shalt not bear false witness against thy neighbor. This means don't lie. It's just a good rule to follow. Enough said?
10- Do not covet thy neighbors online Friends. I saw a presentation about Social Networking sites which stated you cannot keep meaningful contact up with more than 150 people, nobody can. If you think this is overstated, try this test. Take a look at your list of Friends on any social networking site. Now, ask yourself this question, how many of these people would pick me up at the airport if I asked them? Those are your friends.***
***Paraphrased from something I heard Chuck Prophet say at a show at the Tractor Tavern in 2010 (see Commandment #8)