From the makers of Riya.com comes Like.com, where you can search for things that are similar to each other in shape and/or color.
Here’s what happens when you click on a watch some celeb is wearing in a picture, and say you’re looking for other watches with a similar minidial arrangement.
I have a couple of videos with Riya (an interview with Riya’s CEO and a demo video) over at http://www.scobleshow.com linked to from my blog at http://scobleizer.com/2006/11/08/riya-reborn-is-really-cool-way-to-search/