A bunch of cool Atlas content has recently been posted to the web. Below are a few nice links to check out:
Updated: Free Training CDs
Despite being a pretty fast moving technology, some great Atlas books are starting to appear already. Here are pointers to a few you can buy immediately:
Older Posts of Mine
For tons of other cool Atlas samples and content also make sure to check out this slightly older blog post from me about Atlas content here.
Hope this helps,