The Avahi Walk of Fame
Many applications are already able to utilize Avahi natively. But even if an application is solely targeting Howl or Apple's implementation of the Zeroconf spec, it could still run against Avahi using Avahi's excellent compatibility layer. Below you will find some applications that are able to communicate with Avahi.
Note: This Walk of Fame was initially created by Daniel S. Haischt. He did a printed counterpart for the German Linux Magazin. If you are adding your own app to one of the following categories, it would be nice if you could send a quick email message to the author: <me at daniel dot stefan dot haischt dot name>. Thanks!