Call of Duty and Adlocus Method

The easiest way is to share your links on blogs,forum's...

For example, on a Call Of Duty forum , you go on Youtube , search a video related to CoD and shrink it , then post it on the forum with the same Youtube title, easy way.
Since , you don't steal any rights, you actually even advertise for them :D
Check this forum!
http://adloc.us/vU9OB
http://www.gamespot.com/forums/