I received an e-mail today from Adsense letting me know that they are stopping their AdSense Referrals Program in the last week of August.

Main chunk of the e-mail:

Google Affiliate Network: As part of the integration of
DoubleClick, the DoubleClick Performics Affiliate Network will now
operate as the Google Affiliate Network for advertisers targeting
users located in the United States. Similar to the AdSense
Referrals program, the Google Affiliate Network enables publishers
to apply for advertiser programs and get paid based on