Often I find developers asking questions about what kinds of applications have been built on Virtual Earth, other than the generally mashup oriented stuff on www.ViaVirtualEarth.com.  Basically, what commercial reference implementations exist.  So, I am going to start posting some to this blog to give you an idea of what is out there and inspiration for what can be built.  I have a backlog of them, so stay tuned for a little storm of postings in that arena.