If you want to deter this, keep a second window open to CNN or something and every 5 minutes or so, go back to it and load a new article
Or install a second web browser. There are plenty to choose from for the Mac -- Firefox, Camino, Opera, and OmniWeb all leap to mind.
Me: 44, Wife: 39 M: 17 years T: 20 years Bomb on 08/25/09 1/13/10: MC started 1/28/10, 2/8/10: More bombs 8/28/10: Wife moved out No talk of D, no movement