Try Microsoft's Photosynth

After seven months of development, Microsoft is making Photosynth tech demo available. You can't upload photos but it's a cool demo of how to navigate a photo site. In keep with Microsoft's merging of the Web and client, Live Labs head Gary Flake called Photsynth an "elegant marriage between the client and server." Photosynth allows:

• Walk or fly through a scene to see photos from any angle.
• Seamlessly zoom in or out of a photo whether it's megapixels or gigapixels in size.See where pictures were taken in relation to one another.
• Find similar photos to the one you're currently viewing.
• Send a collection or a view of one to a friend.