PSN Beta Program
UPDATE: No Longer Available
Microsoft Connect
Link your Microsoft account and you will be eligible for various Microsoft Betas in the future.
Currently accepting aplications for Project Spark, Mediaroom and Microsoft Game Studios Beta Program.
UPDATE: No Longer Available
Bungie User Research
Register here for a chance to take part in Bungies’ Beta tests. A the moment that would include a little game called Destiny.
UPDATE: NO Longer Available