This page layout is very common. It lends itself
well to many different types of sites. Plenty of negative
space, so that the viewer does not feel crowded.
This is another very popular page structure, used widely
among commerce sites. Gives the page plenty of space while
keeping the navigation straight-forward.
This layout is a bit more creative, using the browser window
as a frame for the web site. Because of the negative space,
these types of site are usually light in content.