FB page SEO

I'm pretty new to the FB stuff but I noticed that my first page I created already ranks great. Want to improve the rankings though.
What kind of SEO are you guys doing with FB pages?
Are there any special ranking factors you have to consider? I guess Google won't recognize the amount of fans the page has so I think that's not relevant.

interested in this too

any advice is appreciated

The only thing I can imagine so far is that you can work with "dirtier" methods because there's no way you can ruin the FB domain. My guess is that you should work hard on your linkbuilding but maybe this is a pretty inefficient way to do it. Advice needed