If you haven't heard about www.photosynth.com before it is a Microosft website that allows you to create immersive 3D reconstructions of your photos - very cool.  The team (Which I have been lucky to be a part of) just released a Silverlight based version of their viewing software which was previously a PC only install.  The Silverlight viewer is not as powerful as the D3D version but it provides a great experience.

 So:

1. Check out Photosynth and get synthing: www.photosynth.com

2. Try out the Silverlight viewer: www.photosynth.com/silverlight

 One of my favourite synths is the following: http://photosynth.net/silverlight/photosynth.aspx?cid=05a75017-dbca-4fb1-b6df-f0c2ca0ba427 it is a really great example of how photosynth can be used to provide a more interactive experience when navigating through a set of images.

Happy synthing and post some links to your favourite synths in the comments.