While searching the Internet for like-minded souls, I happened across this page:
It’s a discussion forum for all things 54mm wargaming, with periods ranging from the Ancients through futuristic Combat. I haven’t finished reading through everything on the site yet, but there appears to be a few house variants of Little Wars by H.G. Wells, as well as discussion of The Portable Wargame by the distinguished Bob Cordery. There is also an exhaustive list of 54mm wargaming resources worth bookmarking, even if you never plan to post a single thought to the boards.
The discussion board is still gaining traction, so please consider stopping by to register and get in on the conversation.