The simple answer is "yes, but not how you think."
Facebook is trying to become the Internet not through business pages, but through apps. Entire websites are now created using Facebook Connect as their membership component. This allows Facebook to essentially dictate the direction those websites go in.
Further, it requires that Facebook exist for a growing part of the Internet to continue functioning. Facebook Connect has beat out OpenID, and will become the predominant method of people logging in to websites (including forums like this) within only a few years. XenForo has implemented a basic FB Connect protocol Expect vBulletin to be majorly revamping their software with FB as a basis for membership.
It's an attractive proposition - to have a singular integrated identity for your entire web presence as an individual - everything you do online controlled from a single FB account, and shared seamlessly across all applications you use. Attractive, for its simplicity, and yet scary, for the "small town" loss of anonymity on the web. Facebook is pushing the "attractive" part under the growing concept that "privacy is antiquated".
Either they will change the way much of the world thinks, or they will go under. I'm thinking the former. It's already beginning.