From howardstern.com:

Howard Stern Gets Suspended!

Sources tell Howard 100 News that Infinity Broadcasting has issued a one-day suspension to Howard Stern… for talking about Sirius Satellite Radio TOO MUCH! K-rock General Manager Tom Chiusano made the announcement as The Howard Stern Show was ending Monday morning. Stay tuned to Howard 100 News throughout the day… we’ll be providing live updates as information becomes available. Then join us at 6:00 eastern time for complete, in-depth coverage of Howard’s suspension. Howard 100 News will have all the details on how and why this happened… Howard’s history of suspensions… reaction from Sterns fans and the Wack-Packers… and what happens next! Only on HOWARD 100 NEWS can you get all the inside details on Howard’s suspension from old-fashioned radio.