Discovery engages third parties that help us deliver banner advertisements and other online communications. The third parties may collect and use information about Discovery customers to help us understand the offers, promotions, and types of advertising that are most appealing to our customers. The personal information they collect is aggregated and cannot be linked to a person.</p> <p>7.3. Third party vendors, such as Google, Facebook, Twitter, show Discovery ads on sites on the internet.</p> <p>7.4. Third party vendors, such as Google, Facebook, Twitter, use cookies to serve ads based on a user's prior visits to Discovery's website.</p> <p>7.5.