For anyone who's ever wondered what that song was you heard in the background of a particular commercial, here's a site where they attempt to catalog as much of it as possible. The site is called adtunes.com, and it's a great place to look if those likeable 30-second snippets aren't enough for you.I remember years ago VW had a commercial that featured "Pink Moon" by Nick Drake, and I wished at the time there was some repository of commercial songs I could search to find out what it was. Luckily for me, a co-worker happened to randomly loan me the CD a few months later. But now, there's hope that I won't have to rely on chance.And for all those of you who thought it was just so clever of UPS to scoop the USPS and use a song by The Postal Service to advertise for their Whiteboard service, this is the site for you too. As a matter of fact, you can hear a longer excerpt of the song playing in the background on the UPS Whiteboard site. Sorry, no lyrics though.