Do you "fan" companies or people on facebook?

I use facebook mostly for my friends and family which is why I haven't friended any of my book blogging friends. However I do become a fan of blogs or publishing companies.

Here's who I'm a fan of that I think you should become a fan of:

Annick Press - they publish Robert Munsch and many other great children's books.

Tundra Books - another great children's publisher here in Canada

Book Dads - great blog to find books about dads, grandfathers and the like.

Know of any other publishers or book blogs on facebook as pages? If so leave links in the comments!