You can get on l'Eroica's mailing list. Mailings are in Italian and English. I imagine Cino Heroica has a mailing list as well. Still, there is much more out there than just those few events: swap meets (with or without strict focus on vintage stuff), regularly scheduled vintage rides, and non-vintage events like the Dairyland Dare where people like [MENTION=108582]RobbieTunes[/MENTION] catalyze participation by vintage bike folk.

Dale Brown and I attempt to maintain a calendar of upcoming events in Google Calendar. It's displayed at the bottom of the Classic Rendezvous front page. Note that it might be a bit more restrictive than the stuff we talk about here, since the CR group has a more tightly defined focus on the vintage bike hobby/business. If you have events to publicize, feel free to send them to me. I prefer email (skip at pobox dot com) over PMs.