Bukkit

NickNamesX is a great and simple nick plugin with many plans to come!

The Complete Hub Plugin for Bukkit.

All-in-one Hub Solution. Reduce player lag, save space and remove some events.

Allow for dynamic and custom client server list and login MOTDs

JPanel - A plugin based web panel for Bukkit

Prism

Modifys the tablist: Changes order and adds prefixes

Create a custom animated scoreboard !

Check for multi-accounting players via IP-Address or Player Name

Show WorldGuard regions on Dynmap's maps, with live update

Highly customizable, elegant and lightweighet announcements plugin

HeadsLeaderBoards

Fully customizable voting with ban/kick/day/night/rain/sun

HolographicScoreboard

SlimefunGuide+

AutoAnnouncer

Automated broadcast plugin.

Per user, per world highly configurable compass mechanics.

DragonFly

Assign texts to commands