I took some time recently to watch the latest Maven 3 video course offered by Packt publishing. I wasn't sure what to expect since I have seen any of their other video courses. I was pleasantly surprised by the depth of coverage and the well thought out organization of the course.
The course walks you through the ins and outs of using maven 3 which is great if you are a new user. What's also great is that it shows you how to integrate development with maven into different IDE's like Eclipse and IntelliJ.
If you've never used maven or you haven't spent much time using it inside an IDE this course is a great tool to get you started. There's a lot of good tips in there even for those who already use maven as well.