The homepage/newsfeed is the holy grail of Facebook for Branded Pages. However for a lot of Branded Pages their information doesn't get to fans feeds because of the Facebook Newsfeed Algorithm. Because there is so much information Facebook tries to make the feed as relevant to you as possible. They work out relevancy using three criteria.
1. How many friends are commenting on a certain piece of content - This is how many people out of your networks have become friends with the Page, the more people the better. I have also observed that the story can come up in your news feed multiple times as more people join.
2. Who posted the content (how many interactions have you had with them in the past) - The more times someone visits your Page the more chance you have of getting
3. What type of content it is (e.g. photo, video, or status update). As far as I can tell they preference joining Pages and Pictures rank pretty high whereas joining Groups and commenting on Pages or Status updates from Pages is not as highly valued.
If anyone has anymore information on FNO, please feel free to share.