80 million tiny images
OK, these guys from MIT wanted to see what 80 million images looked like whent they were all squashed together. But the neat thing is that they took about 74,000 vocabulary words, and created an image out of other images to show what the meaning was. This is actually a project to get people to help computers recognize images. You can help by clicking on an image, and defining parts of it. A great way to get discussion going about almost anything. Read more aobut this at the ReadWriteWeb.