I keep finding more work that others have done related to the mapping of biblical sites.
You'll find descriptions and links to quite a few mapping sites here. Of special note among the sites/maps listed are:
- Bible Maps on Preceptaustin.org: Very helpful 'topical' maps (i.e., maps reflecting a particular event, period, or person)
- Interactive Satellite Map of the Holy Land: It is kind of like using GoogleEarth with biblical sites overlays. Like GoogleEarth it is free and uses excellent satellite maps, but unlike GoogleEarth: a) it is downloadable, so you don't need to be online to use it; b) it runs in a browser window; c) it is dedicated to biblical sites and has a very nice interface to quickly locate sites; and d) you can also download a version that can be used on a PocketPC.