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I'd prefer http://www.randomnumbers.info/ to puny humans rolling imperfect dice.

This is neat but there have been other quantum random number generators online for years. This one by id Quantique springs to mind... I'm not sure what this new service provides that others don't. If you REALLY want secure random numbers you should buy a QRNG PCI card and make them yourself so you're the only one with a copy.

I'm sure you could, but why do that when you can buy an off-the-shelf quantum RNG? It's so much easier, and probably much more reliable. Furthermore, since it relies on quantum effects, it is 100% random. (Actually, manufacturing irregularities probably bias it slightly in favor of one state. Even if that's the case, it's still non-deterministic, unlike all software implementations.)

If you need only a few random numbers, I'd suggest using this website, which relies on the aforementioned product. To prove that determinism is wrong, I've been using it for months as a sort of "quantum coin flip."

Unavoidable obstruction to high security on the end user level. if they're too lazy to write down or memorize their passwords, too cheap for higher-technology solutions (biometrics, etc..), and not employed by a company that offers neat little LED gizmos to feed them a new password every minute, how can they expect their data to remain secure from everyone else? I personally very much like this site's services... people don't often guess 20-character randomly-gneerated passwords.

From the Generating Random Numbers page:

Contrary to the case where classical physics is used as the source of randomness and where determinism is hidden behind complexity, one can say that with quantum physics randomness is revealed by simplicity.

Anyone who's studied Quantum Physics and doesn't see that the innate quality of the randomness is a presumed conclusion just wasn't paying enough attention.

If you take a look at this page it explains how it works.

How they do it

At the bottom it explains about the semi transparent mirror system for generating the numbers. The article suggests that the mirror is 50% transparent/50% not transparent. This seems to me to be the point where a bias may be introduced. Surely its physically impossible to manufacture such a mirror to guarantee it is exactly 50/50 either way. It might be a very small bias, but ill bet there is one there. You'd just need a lot of numbers to prove it.

Read Here

It's only one click away from the first page.

According to Nicolas Gisin, professor at the Group of Applied Physics, .Quantum physics is the only physical theory predicting that the outcome of certain phenomena is random. It is thus a natural choice to use it to generate true random numbers..

Next you'll be telling us you know more that he does.