Banner advertising
Banner advertising has its roots in the early Internet. Early websites would have a section at the top like a masthead which would contain an advert; these would be the first things that consumers would see, and from a practical point of view they were easy to insert. Banners then went on to include skyscrapers and similar, which are simply vertical banners. Today most banner type advertising is simply PPC served through third-party advertising companies such as Google, Microsoft and Yahoo!