I'm a regular reader of the iBob list and less regularly of Classic Rendezvous. Both are easily read at http://yojimg.net/bike/ibob/.

On occasion I read the "English 3-speeds" and "Vintage Lightweights" discussions at http://www.oldroads.com/.

There are also several manufacturer- or bike-specific lists groups on groups.yahoo.com and groups.google.com. I catch up with the Kogswell group that way.

Neal