AntiAdvertiser stops advertisers from advertising.
See project on Bukkit Dev: AntiAdvertiser on dev.bukkit.org
I am no longer actively maintaining this project (adding features or fixing minor bugs). If you're a developer and would like to contribute, please submit a pull request - I still check those.
The master branch is the primary branch for development, and stable is the version currently available for download from Bukkit Dev. Unless otherwise noted, both branches should be safe to run in a production environment.