Facebook likes and shares without button or plugin possible?

It is possible to get likes and shares to a website (not fan page) without the FB button or plugin?

Thanks

I believe it's not as it prompts you for a comment after if they already are logged in, or have a cookie to stay active.

If someone figured out a way to automate this without it being visible, they wouldn't share it for free, that's for sure. They'd need to promote the shit out of it, exploit and bank while it was still possible.

They have to visible. And...yes... have a clickjack script for invisible liking, but don't do that.