Check out this nifty new search toy: Amaztype
takes your search terms and produces a visual browse pile of relevant books or music from Amazon's catalog, arranged in the shape of the letters. It adds a whole new layer of serendipity to the online surfing experience. Otherwise I might not have found "Build Your Own Laser, Phaser, Ion Ray Gun, and Other Working Space Age Projects
It's a pity that the way the books are arranged appears fairly random. But still fun.
Amaztype searching for lasers in Amazon's book collection.