Free Multiplayer Weekend On Xbox Live!
June 9-12, all Xbox 360 and Xbox Live Multiplayer is free to play, so invite all your non-gold buddies to hop on and see what they're missing!
http://www.xbox.com/en-US/live/free-multiplayer-weekend
And as a bonus (and possibly more importantly) Rocket League is free to play during the same time frame, so check it out!