Classmates is one of the best places to connect with old friends. You can even browse old yearbooks and see who's commenting on them.
Have you heard of Classmates before? They have the largest collection of High School Yearbooks online (Over 300,000!). It is pretty cool and is simple to use. You can find old high school friends, view their photos and profiles, communicate and see where everyone is now. There's even a reunion tool for planning your next get together.