This process helps us manage and track the effectiveness of our marketing efforts.</p> <p>We also contract with third-party advertising networks that may collect IP addresses and other information from web beacons on our websites, emails, and on third-party websites. Ad networks follow your online activities over time by collecting website navigational information through automated means, including through the use of cookies. They use this information to provide advertisements about products and services that may be of interest to you. You may see these advertisements on other websites.