A service of USA Track & Field Masters Committee, mastershistory.org is a rich repository of the sport, including every issue of National Masters News (and many seen-for-the-first-time color images) from 1977 through 2006.
The site says: “Literally thousands of pages of material can be found here, including virtually all World and American championship meet results. They are collected all in one place for the first time as a tribute to the athletes, officials and masters leaders who made it possible. This site will grow. So have patience as we build the online masters museum first envisioned by Andy Hecker.”