I thought some of you might get a kick out of this Google maps mashup. It can display US public libraries on Google maps. You can check out where the libraries are near a particular zip code. Neither Sun City nor Sun City West libraries though are on the map.
It doesn't show academic libraries, so if one was looking for, say, University of Cincinnati library, one would have to ask Roberta - or a passing stranger.
Click on the title of this post to see the libraries near 85375, including Catherine's. Northwest Regional is also on the map, but as a central library. Has anybody been to Peoria (AZ) library?
By the way, you don't have to know the zip code, you can just move the map around until you get to the area in which you are interested.