Awesome redditer Reedey has prepared this awesome pie chart explaining the intersection and union of Moms, Milf and Cougar. Also features Stacy's mom. Although I'd suggest that it should have Stifler's mom too somewhere on this pie chart. :P
There are some minor spoilers from the Captain America Movie here. But still, there is some awesome shit to be blow your faces off. Here's the first teaser trailer of the Avengers movie, hitting cinemas in 2012.