The following came in their weekly newsletter email:
Save Big on Star Wars Games
With the next installment of the Star Wars juggernaut upon us this week, we can't think of a better time to offer up huge savings on Star Wars games. Buy any title from our list of eligible Star Wars games and Prima strategy guides and we will give you a 20% off coupon for your next purchase of preowned games and a $5 coupon to pass along to your friends. Every time one of your so-called friends uses the coupon, you'll get $2.50 in EBgames.com credit! Follow this link to get all the details and see the list of eligible titles:
This is pretty much the same as "share the love" but more benefit. Right now it only appears to apply on Star Wars games and Strategy Guides.