The AdSense Referrals programme is being retired

Thank you for participating in the AdSense Referrals programme. We
will be retiring the AdSense Referrals programme during the last
week of August. After that time, AdSense Referrals code will no
longer display ads.

If you currently use referrals, either to promote Google products
or offerings from AdWords advertisers, we encourage that you take
the following steps before the product is retired:

* Remove all referral code from your site(s): Please take a
moment to remove all referral code from your sites before the last
week of August, so that you can continue to effectively monetise
your ad space.
* Replace your referral ads with AdSense for content ads: If
you have less than three AdSense for content ad units on a page,
we recommend replacing referral ad units with standard AFC ad
units. This will minimise the risk of decreased AdSense earnings
when the Referrals programme is retired.
* Run and save all referrals reports to your desktop: All
Referrals reports will no longer be available at the end of
October