Classmates, based in Seattle, Washington, operates the leading online social network service in the United States for bringing high school alumni together.

Classmates, which was founded in 1995, serves over 70 million members and enables its users to find and reconnect with high school friends. In addition to facilitating connections with high school friends, Classmates also features the largest library of digitized yearbooks available anywhere on the Internet, with over 300,000 yearbooks available online to help members reconnect, reminisce, engage, and plan reunions with their classmates.

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