[rufusjones]

Facebook, Google or Twitter, because I don't think those companies know enough about me yet.

Sane people use Abine's Maskme things they think they might want to use and Mailinator or one of the other disposables places for those they doubt they'll use.

[AbhishekBiswal]

Exactly. My friend does that, it's more about carefully signing in, and not signing up for apps which follow/tweet/post stuff. Which one do you use the most? Different services for different apps?