Tiny Geocoder is a small, simple web geocoder; type in an address or geographic location, and get back the approximate latitude/longitude for that location, and a Google Map view with that location plotted:
If you have a Google Map API key (free), you can generate code to create a static link to this map (static meaning just the image itself, not scrollable or zoomable).
And for web gearheads, there’s a simple and free API available for geocoding and reverse geocoding. Here’s an example of geocoding for Provo, Utah, and reverse geocoding for 37,-110.
Here is my version of a geo-coding tool. http://www.aggregatedintelligence.com/googlemaps/reverseGeoCode.html
Allows you to perform forward and reverse geo-coding from one page.