Tin Eye, an interesting “visual” search engine. As in you upload an image and it’ll will return searches of similar images. It has some interesting uses, such as say you have an image of a cityscape somewhere in the world but have no idea where it is. You could then upload it to Tin Eye and it will either find that same image with details or a similar one. Or… if you were an image creator you could upload your work and see if anyone has ripped it off. The company who makes it ideeinc have a whole bunch of other “visual” search engines as well. Neat.

The google killer? Mmm maybe not, but could be interesting. Powerset searches wikipedia and can bring the information to you instead of you to the information… if that makes sense. Watch the demovid.