Purpose of the page
I see this page as a gateway to introducing the overall structure of the TCP/IP model, without going too far in depth, since topics for examining each specific layer exist. Basic explanations and applications should be described here, more detailed theory should be left to the other pages.
Nomination for renaming
Why people seem to insist on calling this "TCP/IP" I have no clue. IP is on its own, TCP happens to be a protocol one layer deeper. Can it even be honestly said it's the predominant use of IP anymore, what with the increased use of things like RTP (which uses UDP)? Networking by its nature is layered, and calling it "TCP/IP" suggests TCP and IP are on equal levels when they are very clearly not.