Start working with Oracle JDeveloper 11g

Oracle JDeveloper 11g Tutorials: i am quiet happy with Netbeans 6.1, but today I started my developing with
Oracle JDeveloper 11g... So Im lookin for some good begginers tutorials...

these are only I found.. if you know some plz add to comments..

http://www.oracle.com/technology/products/jdev/index.html

http://www.oracle.com/technology/products/jdev/11/cuecards/index.html

Update:
I started a new blog to post all new things i learn about Oracle JDeveloper 11g
follow...
http://jdev11g.blogspot.com/