I think Google Map API is a very cool tool that could flash your personal web site.
I just found it, and I'm starting to read the documentation now.
Hope I can embed a map into this site.
Link of Google Map API : http://www.google.com/apis/maps/
Actually I found it very hard to check out the latitude and longitude of the address outside USA. The following website could provide a little help by querying latlongitude via post code (for European countries): http://www.geonames.org/export/free-geocoding.html . But it's still not very accurate...