https://github.com/dotcloud/docker/issues/614
Feel free to add to the list if you know of some I forgot.
I'm also planning on writing my own Docker for dummies tutorial that goes from beginning to end explaining how to use each part along the way. Now I just need to find some time to put it all together.
I gave a talk last week at the dotScale conference [1] about the high-level motivation behind Docker. The video should be available soon.
I'm also working on a series of articles on the design principles behind it - separation of concerns, static vs dynamic dependencies, why developers never use system packages, "real computers all the way down", thinking of the internet as one giant unix computer... Basically 5 years worth of obsessing over this particular subject :)