For testing Quake Servers on the Internet for playability, before you get in and LAG!!! each time you connect to your ISP your ping to Quake Servers may change, this will tell you what servers are best for your connection.
Speednet Group
Cristiano Leoni
First Productions, Inc.
kydsoft Inc
Mark Balthazor
LoRDRaT
BugMaker Software
Richard Marin
Jun Yan
Fookes Software
Lotus Notes Conversion
Ipodelite Co., Ltd.
Robert Steinbach
Recovery Software
MaximaGames
IncrediTools
Nsasoft US LLC