Damn! Why have I not heard of WebCite before this?
Everyone who cites websites needs to hear about this tool. Really. I cannot count the number of times that I have seen websites referenced that no longer looked the way they did when they were first cited. This is most obvious when people are pointing out typos or poor Photoshop jobs, but this sort of thing happens all of the time. And look at this, now we have a tool that can take care of that problem. Now, if we could only get people to start using it.