"The KLOV® (Killer List of Videogames®), the International Arcade Museum's video-game division, has provided the authoritative database of coin-operated video-games since the 1980's.
Penny Arcadia™ has produced exhibitions, museum exhibits, and special events since 1982.
The Video Arcade Preservation Society™ (VAPS™, a.k.a. The Vintage Arcade Preservation Society™) is a collector organization and census project for all types of coin-operated entertainment, founded in the 1980's." (INTERNET SITE INFORMATION PROVIDED BY arcade-museum.com)

http://www.arcade-museum.com/

SEGA MANUALS:
http://www.sauservice.com/