Make your own annotated Google map

Okay, it ain't exactly easy, but Engadget.com recently published a tutorial on using XML to created your own personalized, dynamic Google map. So, for example, if you wanted to plot all the related venues of an upcoming wedding (the church, the parents' house, the reception, the hotel, etc), you could do that using this method, then email the link to everyone associated with the wedding, so that they'd have one central map showing them where everything is located. And even better, all the original Google features are included: zoomability, mouse-drag real-time moving of the map, clickable links, etc. A pretty cool little feature - if you're already comfortable with XML tags, I'd definitely go check it out. (Thanks to Dave Winer for originally pointing this out.)