Groupon is 9% CB today and they have a Newegg 6-mth. Premier Membership and $ 50 credit for $ 50, or a 12-mth. Membership + $ 100 credit for $ 100!

FW CB Terms state that there is no CB on Gift Cards, however Groupon calls it a Credit in one spot and a GC in another, so I guess this would be a YMMV.