Twitter is an amazing public tool with an incredible capacity for public good.

Seeing how easy it has been to use Twitter for good has exposed the double-edged sword of how easy it could be to co-opt.

Good advice is just watch what you say on Facebook, on Twitter, on social networks because being sued is not fun. Filing a lawsuit is not fun. And being fired and having to do all of those things is not fun. So just avoid it.

If I can't do something for the public good, what the hell am I doing?

Well-reported news is a public good; bad news is bad for everyone.

I'm worried about looking like a bad person when, in fact, I try to be a good person. I don't like the public image that I've been dressed with and it worries me.