Originally Posted by unclebuck:
Go to yahoo groups and join "racing history groups" a wealth of history and links of all kinds can be found. You'll have to search around. Published historians are on this group.
More specifically, go to groups.yahoo.com and search for RacingHistory (all one word). A number of IOW members are also RH members.
Note that RH is limited to discussions of open wheel racing before 1970.