Page size: The most common page sizes are 8 ½ x 11 and 12 x 12, but there is almost no limit to the options available. Sizes range from 12x15 albums to 1x1 - with every size and style in between.
Binding type: The most popular choices are post-bound, 3-ring binders and strap hinge. These albums all allow for pages to be added or removed. Spiral bound albums are also available, but limit your ability to add or remove pages.
Page Protectors: While most albums come with standard page protectors, divided page protectors have become very popular over the last few years. These allow you to simply slide your photos and memorabilia in to page protectors that are divided into a variety of sizes, the most common of which is for 4x6 photos. These double as photo storage as well, and enable you to create scrapbooks quickly with a minimum of paper and embellishments required.