Current implemented features
!players - Shows a list of players
!lol - Shows a *sometimes* funny one line joke
!coffee - Shows a one liner on coffee
!offlinemsg <player> <message> - Sends a message to a player next time they log on
!mitch - Shows a joke from the late great Mitch Hedberg
!calc <expression> - Evaluates a math express ie. !calc 16/4 outputs 4
!<resource> <number> - Calculates how many of what raw materials are necessary to create this number of resource. Resource can be Tracks, Torches, Dye Colors (ie. green), Bookcases, and a few others
A few other derogatory commands mostly for the lulz
An IRC bot is set up on gamesurge which will relay in game chat messages, and allow communication from outside minecraft.
Server: irc.gamesurge.net
Port: 6667
Channel: #mcjoeadmin
From Irc... !mc <message> will send a message to all players in minecraft
If you've never used IRC...
There's a web client here:
http://gamesurge.net/chat/
Or a standalone client here:
http://www.mirc.com/