A couple weeks ago I mentioned the son (Jacob) of a good friend (David) published his first book, Minecraft for Dummies.  I heard back from his father that:

The book has sold very well in the US and is going into a second printing.  It goes on sale tomorrow in the UK and other international Amazon stores tomorrow.

You might be interested in the community called MinecraftEDU which builds various lesson plans on top of a Minecraft Mod.   Some of the leaders of this movement are in Singapore and other parts of Asia / Australia.

And not missing a beat, a few days ago Jacob was interviewed by Parents magazine as well.  Congrats!

If any reader has other stories about self-publication (non-gimmicky) or even Minecraft, post a note in the comments or send me an email.