In my previous post I mentioned 2 great uses of mashups for business. The wow factor in both of those applications is based on Microsoft's Virtual Earth. This mapping technology is great and easy to use. Anyone can incorporate the maps into their site or create their own mashups. If you're using Atlas you can make some really amazing applications, but even in its simplest form Virtual Earth is great. It's very easy to start (I'll be developing a virtual earth based application as an example) and all you need is here: Getting Started with Microsoft Virtual Earth
Lastly, if anyone is using the older Mappoint technology, you can get our help in migrating to Virtual Earth.