What are good affiliate/referral programs for selling game currency?

Haven't been on Sythe in a long long time.

As title states, what are some good affiliate/referral programs related to selling game currencies such as wow gold, rs gold, eve isk, etc?

I already came up with a handful in google, just seeing if anyone has any recommendations.


Also: heh, i remember back when Sythe was taking recommendations for a new slogan. guess the craigslist one won.