Can you link to some Facebook Pages that are successful in your opinion?

I like Neil Patel's Quick Sprout Fan Page. For me success isn't measure by having the most fans, but by getting the fans you do have to take whatever action you want them to take. I think Neil succeeded at that.

Also, tell us why you think it's well done and how they did it.

The best way to answer this is to let Neil tell you himself. On his blog he described in detail how and what he did to create a successful Facebook Fan Page.

Mashable had a several how-to articles concerning Facebook pages, with examples:

http://mashable.com/2010/02/25/facebook-fan-page-ideas/

http://mashable.com/2010/02/22/build-facebook-landing-page/

http://mashable.com/2010/03/28/facebook-business-apps/

http://www.facebook.com/LasVegasHilton and they are very responsive via their associated Twitter account

They actively solicit fan input and use video and photos very well.