As part of the current development of forceTen, I'm writing documentation and tutorials about its APIs and about how to reuse forceTen components in other NetBeans Platform applications (soon more tutorials will also come about blueMarine components). It's a way to show you what I'm going to achieve with my series of posts about "Pluggable TopComponents" (the latest is here, with the next coming soon).
A first textual tutorial is available, together with its screencast companion. Even if you're not interested in forceTen, I believe it's a good introduction about how Maven works with the NetBean Platform and why it's a great way to resuse others' components in your application.
Enjoy and please provide feedback!