how do I add a wms layer to a bing map using javascript? anyone know any good examples?
Typically I've used a proxy service that translates the quad key to the proper coordinates of the wms. A good start for writing such a proxy service in C# as a web handler can be found here: http://www.viawindowslive.com/Articles/VirtualEarth/AccessingWMSfromVirtualEarth.aspx
The problem lies in the way that bings maps requires you to specify a tile url. If you're not locked into bing maps, this sort of thing is much easier with Google Maps version 2.0 or Open layers as the above poster suggested.