We all love Google Maps but let's face it, if you don't live in one of the major cities in the world, your city will just appear as a satellite image or if you're very unlucky, your place would probably show up as "no available image". The good news is that Google makes their codes available to the public so you can create your own maps. These maps will have the file extension KML. The documentation can be found on Google.

Once you've made your own map, you can share this map on your server or website using an server side language, even the ones with the file extension aspx. Check this tutorial on CodeProject. The key is of course using Javascript so that it can work with any server side language.