On the other hand, computers are by their very nature predictable and repeatable. In order to obtain truly random numbers from a computer, some non-computational source of entropy must be introduced. This article, "Introduction to Randomness and Random Numbers" from http://random.org explains this in considerable detail.

I disagree, it has been scientifically proven that the CPU cache timeouts or whatever it is called, is statistically random. And a good software gather other entropy sources too, like the heat of the PC and others. It should be very high quality randomness.

But you can always salt the entropy just to make sure it's not tampered randomness.

Why would you use Random.org? You want that website to know your entropy? Why not just generate it yourself then.

I am not against the dice, I would use dices too, but I would only use them as salt, and not as the main entropy source.