Technically, YouTube and Facebook are in the same category. You should've also either spent 400 Microsoft Points or more on any movie or television content OR at least 10 hours using one of the listed entertainment apps, i.e. Crackle, Netflix, Hulu, HBO GO, Last.FM, etc.
As far as specific payout goes, the rewards listing says Microsoft Points will be awarded by May 15, 2012.
Reference Link: rewards.xbox.com/triple-play-offer