The Minecraft wiki helped me out when I was a nubzorz, so I recommend checking that out too if you have any questions about particular blocks, enemies, items etc. Also has a great list on all of the craftable items and how to make them.
It kinda' pains me to say that I'm currently running a cracked account, mostly because it doesn't feel like there is much dignity to pirating an indie game. But hey, shareware rules apply here? Not sure how my Minecraft works in multiplayer, since the only server I've played on was using Hamachi.
Jesus, just buy the fucking game. It's cheap. It's not like Notch is Microsoft or EA or some evil corporation like that.
Heh, thats a bit more brash than I would have put it but I certainly understand and agree. That said I'm also empathetic to the poor college student that would buy the game if they could. Or sombody that wants to try it first before buying. It would have to be a community decision wether or not to allow cracked accounts if and when we get the SC server going.
The game cost me around 22$ U.S. with tax. If you're lucky, you might get dinner for one at a decent resturaunt for that amount.