What is Minecraft? From the Minecraft Wiki:
Minecraft is a sandbox construction game, inspired by Infiniminer, Dwarf Fortress and Dungeon Keeper, created by Markus Persson, the founder of Mojang AB. The game involves players creating and destroying various types of blocks in a three-dimensional environment. The player takes an avatar that can destroy or create blocks, forming fantastic structures, creations and artwork across the various multiplayer servers in multiple game modes.
Minecraft is available to players for €19.95. Singleplayer and multiplayer, when purchased, can be played in the user's web browser, or using the downloadable client. Minecraft Classic is available to play for free. Minecraft development started around the 10th of May 2009, and pre-orders for the full game started being accepted on the 13th of June 2009. Minecraft's official release date was the 18th of November 2011. On the 5th of May 2012, Minecraft was released for the Xbox 360 on Xbox Live Arcade (for 1600 points, about $20), where it soon shattered all previous sales records.
Links and Resources
The Official Minecraft Forums
The Official Minecraft Wiki
Mojang (Minecraft Dev Company)'s Blog
Jens Bergensten (Lead Minecraft Developer)'s Twitter
Bukkit - Expandable Minecraft Server Software
Most People here on the CAD forums play on the server graciously hosted and maintained by Shawn Adams (AKA: khyron42 unless he changes his name)
Server Address (as of 8 November 2012):
Opening (or clicking) the server address takes you to the server webpage with live server maps, a small breakdown of the the commands available, and live player information.
Kicking off the new Minecraft thread, I am... annoyed to say my castle wall is actually only about 1/4 totally done. Never try to wall-in an area the size of Texas unless you have *a lot* of free time.
Also it appears an update at some point busted the piston timing, many of the piston clocks are off or totally broken (sadface) . iamcooler has been doing his best to repair the damaged wiring and circuits so hopefully everything will go back to working soon, we just have to find new ways to do some circuits.