One very effective way of learning about yearbook design is to look at what other students are doing in their yearbooks. A number of the larger yearbook publishers have galleries of good design examples available on the internet.
Click any of these links to see what students in other schools around the world are doing in their yearbooks.
Herff Jones is one of the biggest yearbook publishers in the USA and has a very large gallery of page examples divided into different sections. HIGHLY RECOMMENDED
This site has three different galleries with good examples of page layouts to look at.
This site has two main galleries; one for covers and another for good page example. It also has an archive from previous years.
This has a large gallery of yearbook pages, not all are from schools.
This site has a gallery of yearbook covers, but no page layouts