parses the RSS feed for the message listing of a Yahoo Groups mailing list and sends new messages to a user via Jabber. I wrote this because I never check the email address I used when I created the login to Yahoo groups and, frankly, I don't need to get more email from YA mailing list. But, it would nice to see when something new has been posted. The program is meant to be run as a cron-job and stores a hash containing { groupname => lastmessage } which is compared every time it is run. Only messages with an id greater than the last message are sent.