From the ARRL Contest Update for December 22, 2010:

Technical Web Site of the Week
- The FCC recently released its most recent version of the "Spectrum Dashboard" which allows you to browse and zoom in on all allocated spectrum from 225 MHz to 3700 MHz with a graphical tool. (From the December issue of "Cheese Bits" Mt Airy "Packrats" VHF Radio Club)

http://reboot.fcc.gov/spectrumdashboard/
 
Happy Holidays!
 
73, Ralph K1ZZI