If you’re a blogger using Movable Type — which reminds me that I need to upgrade to version 3.2 at some point — you might be interested in the MTGoogleMaps plugin. It requires a Google Maps API key, naturally, but it’ll allow you to embed a map into a blog entry through a Movable Type tag, which means that if you can hack Movable Type, you can throw up a map in no time at all. Via Movable Type News.