Scanned digital copies of old high school and college class yearbooks are available on Classmates.com and Ancestry.com. Some libraries and town archives also maintain collections of physical yearbooks from schools in the area.
As of 2015, most large collections of yearbooks maintained online are based on user submissions. This means that collections may not have an exhaustive list of yearbooks from every school and year. Ancestry.com has a more exhaustive yearbook search function than Classmates.com, allowing users to search yearbooks by names of students and keyword in addition to school and year. However, some content on Ancestry.com can only be accessed by paying site members.