The top 25 most “Liked” Facebook pages as of Jan 20, 2011 according to Pagedata are -

Facebook’s very own page comes second with 32.2 million “Likes” behind Zynga’s Texas Hold’em Poker which has 33.4 million “Likes.” Micheal Jackson, Lady Gaga and YouTube pages follows as the third, fourth and fifth position with 27.1 million, 26.6million and 25.9 million “Likes” respectively.
Stripping bare of all other pages except for product or business pages, Coca-cola tops the business page ranking with 21.9 million “Likes” (overall raking of 8), followed by Starbucks with 19.2 million “Likes” (overall ranking of 14). Oreo, Disney and Red Bull fill up the remaining top five with 16.3 million, 16 million and 14.8 million “Likes” with an overall ranking of 27, 30 and 35 respectively.
In the top 25 list, business-oriented pages like brand or product looks modest in comparison to consumer-oriented pages like games, apps, and celebrities.
The scenario did not changed in the top 100 either, with only 17 products or brands with ecommerce presence making it into the overall top 100 Liked pages.
Facebook has rolled out a new feature called “Page Browser” that can be used to discover Facebook pages.
The new feature is aimed to help users quickly browse, discover interest-related Facebook Pages and Like them.

The pages are organized into nine categories including music, sports, celebrities, movies and games etc.
Pages are showcased according to your country by default. You can change the country from the country drop-down menu available at the top right corner. The feature might also be taking your recent browsing habits, likes etc into consideration to showcase Pages when you go to the feature.
The page also show your friends who have common interest like “liking” a common Facebook Page. A small statistic to let you know how much or how little common interest you share with your friends regarding Facebook’s likes and dislikes.
As you hover over a Page’s thumbnail, Facebook’s like button comes out and you can like the page from there directly.
“A couple of months ago I found myself online, browsing for movies to rent,” says Facebook designer named Ben Blumenfeld, who came up with the idea, “There are lots of tools to find new movies or rediscover old ones. As I poked around, I thought, ‘People should really be able to do this with Pages on Facebook!’”
Blumenfeld added that Facebook’s Page Browser will see lots of improvement in the days to come as they receives more feedback from members.
A Facebook page is a modern approach for maintaining a personalized webpage for something. You can create a Facebook page for anything such as your hobby, company, club, society, project etc. Unlike the Facebook groups who have members, Facebook Pages have fans. Although many Facebook features are restricted to the visitors who haven’t logged-in to Facebook, Facebook Pages are visible to the outer public. If you have a Facebook page for some purpose, you can send updates to your fans. These updates usually appear at the right side of the home page, so it gets less attention. Once the fans get the updates, they can go through the link and see the full message or the update made by the Page owners.
There are many Facebook applications that can be added to the Facebook page. As an example, you can simply add a RSS feed to your page, so the Page will display the latest updates from your blog. When it comes to advantages, being accessible by non-Facebook members is the biggest advantage as it allows the Page to reach a wide range of people on the Internet. If you are really interested in the statistics of the users visiting your Facebook Page, Facebook gives you an attractive statistics page for you to understand the user behaviors. As a matter of fact, Facebook Pages have a limited popularity so far, making the Facebook users less familiar with Pages than Facebook Groups. Although the non-Facebook visitors can view the page, they need to login to Facebook to make comments.