Getting likes on facebook page without knowing

Hello all,

I was wondering what some facebook page owners do to get likes without the user knowing he likes a page? I notice here and there that I liked a few pages I never clicked like myself or I was ever even on and these pages have 6 digit likes.

Now, I know of the javascript that you put on your website with the invisible link that makes everyone logged in on facebook like your page when they click on basically anything.

Is it what they are doing to get these unwanted likes? Isn't there a way for google or other authorities to find this out and punish you as malicious website?

I also noticed the ones that they send mass emails and whoever opens them likes their pages.

Any insight? Im sure people are interested in sharing their knowledge on this one and learning more...

The likes get removed from the pages.
Its called clickjacking.

They get removed by whom? Facebook? Then why do these guys with less than a year old fanpage get likes at 100,000 and over if they get removed?