HotPads Shows the True Cost of Hosting on Amazon
I love Amazon hosting, and if I were to do another project that required big iron I would totally use it again. I still have a few things on Amazon, but most on VPS servers, including the mighty mighty Quantact, one of the best VPS servers out there.
I also have servers on Slicehost, but somehow their servers aren't quite as well tuned as Quantact, but they have some really nice management software.
I have also had good success with iWeb, but their dedicated server got a little too pricey for me.