For what its worth... (Google Privacy Policy Info)
Google Checkout has some Opt-Out Privacy Clauses in their Privacy Policy that you may exercise explicitly (the full Privacy Policy is at
Google Checkout Privacy.
There are 2 <mailto:> tags in this clause that you have to email to checkout-opt-out1@ google.com & checkout-opt-out2@ google.com (I added spaces intentionally in addresses). The subject for both are "Opt out" and the first puts in body "Please opt me out of the sharing of non-transactional data between GPC and Google. The second puts in the body "Please opt me out of the use by Google of information shared between GPC and Google for promotional purposes.
<snipped clause from policy>
Sharing Between Affiliates
We operate the Google Checkout service through a company called Google Payment Corporation (“GPC”), a wholly-owned subsidiary of Google. The information we collect, including information obtained from third parties, is shared between GPC and Google to operate the service. Neither GPC nor Google will share your information with others except as described in this Privacy Policy.
Under federal law, you have the right to opt out of certain sharing between affiliated companies such as GPC and Google. Specifically, you may choose to opt out of:
The sharing between GPC and Google of information that does not pertain to your transactions or experiences with Google Checkout (also called “non-transactional information”, e.g., information we may obtain from third parties to verify your identity), and
The use by Google of information shared between GPC and Google to promote Google products and services.
Please remember, regardless of whether you choose to opt out of this sharing or not, we will never sell or rent your personal information, and we will not share your personal information with anyone outside of GPC and Google except as described in this Privacy Policy.
If you don’t want us to share non-transactional data between GPC and Google, please click here.
If you don’t want us to use any information shared between GPC and Google to promote Google products and services to you, please click here.
Also, if you wish to exercise either of the above options, you can let us know through our contact page.
Yam