I'm going to move this over to the S.P.A.M. forum, where discussions about e-rewards usually take place. That forum is described as
<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Sites with Points and Alternative Miles, including referral bonuses, congas, and any of the other loyalty currencies </font>
I think that fits this perfect.
Gary
aka gleff
MilesBuzz and Delta moderator