We get a lot of information from clouds nowadays. It just used to be the weather.
Hey You Get Off Of My Cloud Rolling Stones (such a classic)
Both Sides Now (Clouds) Joni Mitchell
Heavy Clouds No Rain Sting
Clouds in My Coffee (You're So Vain) Carly Simon
From the Clouds Jack Johnson
I Can See Clearly Now Jimmy Cliff
Cloud Nine Temptations (Concert alert, The Temptations are playing at the Keswick Theater May 10, 2012.) The Youtube link says March but I double checked it's May.
Cloudy Average White Band
Obscured by Clouds Pink Floyd
Secrets/Far Above the Clouds Mike Oldfield