Hey Mike, you can still join another YahooGroups e-mail lists. Just use the same e-mail address and send a blank e-mail to listname**-subscribe@yahoogroups.com** The "listname" should match the name of the list you want to join, in this case: worldmachine-subscribe@yahoogroups.com You'll get a return mail from Yahoo asking to confirm. Reply to that, and you're subscribed. :)