I personally won't miss them. 87,000 ad impressions generated exactly $0 earnings. I had already relegated the referral units to locations where I couldn't use any other ad service. Friday I spent some time getting them completely off of my site ahead of the referral shutdown in a couple of weeks. It is too bad they didn't work better. I had found some advertisers which were really complimentary to my site's content.
Something tells me the Affiliate Network will not be as accepting of publishers as the AdSense Referrals was. I'm hesitant to even try at this point as to avoid having a rejection show against my domain name should I choose to apply in the future.
[edited by: StuffOfInterest at 10:25 pm (utc) on Aug. 11, 2008]