This plugin prevents xp drop when you do the following(configurable by the config file.):
* Kill mobs
* Mine Ores
* Smelt in a Furnace
* Exp Bottles
Step 1. Download the plugin from the top right of this page.
Step 2. Once it has finished downloading, Drag and drop the plugin into you're /plugins folder of your server directory.
Step 3. Start or Restart your server and it should be installed.
* Disable EXP dropped from breeding (waiting on bukkit api to make a way to do this). v0.5
Official DisableEXP Server: