I'm new to DDO and am interested in making a Pally Tank. I have seen lots of threads on tanking builds, but I wonder if anyone knows of an article or thread on the actual mechanics of tanking. For example, is there more to it than just running into a group of monsters, hit Intimidate, and then try to hit as many of them as possible? Is there a best practice for building threat, other than just attacking? Does holding up your shield do anything for your defense? Does attacking with your shield do anything more than attacking with your sword? Is Cleave a good feat to get?

Thanks for any advice you have.