Bukkit

UltimateHeadFinder

Backup and restore your server with ease. [aupports FTP]

An API for all of Zombie_Striker's plugins

Play Custom sounds when a player joins/leaves/talks/dies or respawns

Marriage Master

Library for intercepting sent and receieved Minecraft packets.

MarriagePlus

Lets servers loop commands every __ seconds

Lets ops keep tallys on servers

Shows TimeZones

Exotic Garden

Have minecraft read the chat to you

BackAgain

Change your ingame skin

Allows Ops to record players movements and play them over again

Have a PVP Menu to get Items

ServerInfo

Adds Lotto, Loans, Stocks

Lets you sell a players heads for half of their money

Guilds, war, land claiming, and user-controlled antigrief