Did you ever have a tune running through your head and you just couldn't remember the name of the song? Fret no more! Just link over to Midomi.com and sing or hum a few bars of the tune into your computer's microphone. Quick as a wink, you'll have a listing of songs that match your tune. It's really amazing... and no, I'm not a good singer.

It returned correct results on a few tests I ran, including Fur Elise, Pop Goes the Weasel, and that Sesame Street classic, Rubber Ducky. However, I was able to stump them with the opening cadence of Deep Purple's Smoke on the Water. Clearly, this search engine was never in a garage band!

Beyond the technology, the really interesting thing is that people log in and create profiles and add recordings. Kind of hard to explain... like Name That Tune meets MySpace. Like online karaoke. It'll be interesting to see if the social networking aspect of Midomi turns it into more than just a novelty search engine.