Turn on all security features like two-factor authentication. People who do that generally don't get hacked. Don't care? You will when you get hacked. Do the same for your email and other social services, too.

I'd rather deal with a big company, because at least I can sue them, and see them, and know what they're doing. Google, for instance, shows you everything they've collected on you, with a clearly written privacy policy. They tell you what they're doing with it. I'm not scared by that.

On mobile, make sure Facebook's app can know where you are. That not only makes features like Nearby Friends possible but also makes your feed have a few items from your location.

Robert Scoble Quotes