Facebook appears to be testing some new buttons on pages, allowing users to follow a page (without liking) or review it with one click. The “Follow” button appears to work similar to the function for profiles, which would put page updates in News Feed, but not show up as a public like.
Gamba noticed that the page for Wimdu had a button allowing non-fans to follow the page. It doesn’t appear that a user who follows the page would appear in the like counts, meaning a user could do this to receive updates from a page without being connected. It also seems like it’s a way for users to have that page’s content in their News Feed without being fair game to be used in page like ads.