Guess the Google

This is a great idea. At this site, the author has created a flash application.

This is similar to Google Montage, in that for a search keyword, Google assembles a set of images related to that search string. However, what makes this one different is that you are given the images, similar to the picture left, and you have to guess the Google search word.

It is quite challenging, and very addictive. Best score so far 253. Post yours in the comments.