TinEye is a reverse image search engine.

You can submit an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions, created by Idée Labs – Visual Search Technology Specialists. TinEye is the first image search engine on the web to use image identification technology rather [...]

Wordle

Beautiful Word Clouds -ordle is a toy for generating “word clouds” from text that you provide. The clouds give greater prominence to words that appear more frequently in the source text. You can tweak your clouds with different fonts, layouts, and color schemes. Find out more : http://www.wordle.net/