As a public service, I will provide web space for your game if you can provide summaries of each stock and operating round. I will not add the fancy HTML formatting that some of the other games have, but if I ever get a (semi-)automatic tool to generate nice summaries than may change. If you want to show off a game (whether pbem or ftf) email alange@rahul.net to make arrangements.
I am using a database to maintain the list, but currently I have to update the data and generate the HTML file manually, so send additions, changes, and deletions to alange@rahul.net, and they will show up on the web in a day or two.
Sorry, but my database doesn't know what the game 'ANY' is, so please list numbers - there are some really obscure games out there, and I wouldn't want to get people's hopes up for a game when half the people 'interested' in a game have never heard of it. If want, check my list of different 18xx games first, and let me know if I missed any.
(Potential) future enhancements:
For those of you who PBEM games other than 18xx, check out the PBEM Gamers' Directory maintained by Eric Pass.