[SquareWheel]

It sounds like a much deeper subject than I first appreciated. I'll definitely read up on this. Using URL rewriting with caching is interesting, I've not seen that before.

I work with one lady that complains about a slow loading JQuery slideshow, and smarter caching may very well be the solution (at least, after the first load).

[SquareWheel]

I've experimented and managed to shave 2 seconds off a client's website upon reloads - that's significant! Still playing with it, but I've already learned a lot.