When do we collect information?
We do not sell, trade, or otherwise transfer to outside parties your personally identifiable information. This does not include website hosting partners and other parties who assist us in operating our website, conducting our business, or serving our users, so long as those parties agree to keep this information confidential. We may also release information when it’s release is appropriate to comply with the law, enforce our site policies, or protect ours or others’ rights, property, or safety.
However, non-personally identifiable visitor information may be provided to other parties for marketing, advertising, or other uses.
Google’s advertising requirements can be summed up by Google’s Advertising Principles. They are put in place to provide a positive experience for users. https://support.google.com/adwordspolicy/answer/1316548?hl=en
Users can set preferences for how Google advertises to you using the Google Ad Settings page. Alternatively, you can opt out by visiting the Network Advertising initiative opt out page or permanently using the Google Analytics Opt Out Browser add on.