OTN and Amazon are teeming up together to host a free "Virtual" Developer Day". If you are interested in learning how to build cool, Web 2.0 style applications (aka Ajax) using Oracle technologies - you should look into this.
But I'm bringing this up because I really like the delivery mechanism - it's going to be taught via webcast using lab machines hosted on Amazon EC2 infrastructure.
This is a great example of what cloud computing can do that is very hard to do otherwise - scale up developer training without breaking the bank.
By using EC2 it's possible for the training team to build images that are pre-configured to run but because it's trivial (and cheap) to split the app server and database machines (though I'm not sure this is how they will do it) you don't have to have the constraints you might have in a normal lab (e.g. how much stuff can you cram into a single vm on a desktop pc). And unlike a traditional in-person class - you can keep your labs on the EC2 (though you do have to pay for the EC2 time, but again, that's cheap).
If you would be interested in training like this around identity management - please leave me a comment.