First, you may be venturing into a topic that isn't under the charter of the group. When this happens, start e-mailing the individuals you're having the discussion with. Second, it may be a topic that's more easily summarized than discussed. One person in the discussion can summarize the results to the mailing list once the discussion is completed. They're places you can go for free information.
Many people can only get to 'ftp' sites.
But those who can use gopher and web will find it easier to read your information if you also have it available directly in those formats. A 'server' is a program that 'serves' information. When people connect to your server, they'll be using a 'client'. If your desktop computer is a Macintosh, and it's hooked to the net, you're lucky. Windows users will have more trouble, but there is good software for you as well.