While trying to scratch a recent itch I have setup the Perl Community AdServer. It allows any web site owner to easily add a few advertisements to his site to promote the Perl related events, the Perl Mongers and various Perl sites.
The server provides the ads based on the country of the visitor. So we can easily advertise the French Perl workshop to visitors from France, the London Perl Workshop to visitors from Great Britain and the Israeli Perl Workshop to visitors from Israel.
I think it would be great if many people would add these ads to their respective web sites.
See the AdServer for instructions on how to add it to your site.