I heard this artists on a local radio station that I listen to.  It's 89.1 The Wood, from Lindenwood University.  It doesn't have commercials and isn't yet streaming.  Weird, I know.

• Daniel Powter - Free Loop
• Regina Spekter - (I don't remember the title, but she played at Lollapalooza '07)
• Jimmy Eat World - The Middle (Acoustic)
• Tegan & Sara - Back in Your Head
• Grace Potter - Ah, Mary
• Two Loons for Tea - Money
• Snow Patrol - Shut Your Eyes
• REM - #9 Dream
• Matchbox 20 - How Far We've Come
• Ret Hot Chili Peppers - We Believe
• Plain White T's - Hey There Delilah
• The Kin - Blue on Blue
• David Gray - Tell me something
• Fionn Regan - Be Good or Be Gone