Suggestion for online tutorial for advanced java concepts?

I'm a University of Maryland graduate with a pretty solid grasp of core Java; however, this training didn't include most of the 'java in a web environment' technologies and similar advanced concepts. I'm looking to spend some time teaching myself concepts of struts, hibernate, EBJ, anything involving beans really.
I've tried googling the concepts individually but I keep finding sites with only small examples or that cover only the most generic overview of the concepts. I'm looking for a (free) online resource that will cover these concepts in a structured, mroe indepth manner. Ideally one that includes some sort of programing assignments so I can try to 'learn by doing.' I was hoping someone could give a link to any resources they have used and recommend.
Thank you

sollen wrote:
A quick glance suggests they have good detailed information, but I still learn best by doing. I don't suppose anyone else knows any good examples of mini programing 'homework' assignments I can work on to get some experience using various technologies. I could make something up myself, but I'm more likely to actually do the work if I have a mini-curriculum to focus on. Left to my own devices I'll sit down and start studying only go get distracted by somethi..LOOK A KITTY!I think you're better off trying to create a program or utility that solves a non-programming problem that you're currently dealing with. That's what I do, and it gives both motivation and the reward of having a bunch of utilities that I use now to create and send out patient letters and what not. To further motivate you, I'll in fact insist that you do this, OR THE KITTY DIES!
Have fun!

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