What happened to the AppleMasters?
From AppleMasters wikipedia page:


  The AppleMasters program was launched in 1996.[3] Based on findings at archive.org's WayBackMachine, Apple removed the program from their web site on or before August 7, 2002.[4]


So it seems the feature has been long gone, which can be confirmed from the linked Internet Archive crawl index.

As for the "fan sites": I found one self-proclaimed fan site: kdunn.org. It currently hosts two videos—presumably related to AppleMasters.

You would probably have much better results searching the YouTube for AppleMasters than searching for fan sites per se.