I just recieved an e-mail from GameSpot regarding the upcoming Beta for Blur. Activision are giving away exculsive access to their upcoming game, in addition to, a 48hr gold membership. The codes will be sent out on 8th March when the Beta offically starts but register today before they run out!!!
Go To: http://uk.gamespot.com/event/codes/blur-beta/
and follow the instructions!
or alternatively I think you maybe able to register here: http://www.blurgame.com/home
Enjoy! Game looks pretty awesome!