RE: what is the best quality?
I use the one through MSN. I think you have to have a login, such as a hotmail address. Just go to the MSN homepage, click on maps & directions, and a map of the US comes up on the right, with a split window, you can close the left side. Then you can zoom in on your area of interest, load photo, roadmap, or combo. It is awesome, especially as you zoom in close. Really good color image (summer of course). Let me know (PM) if you need help with it.