Additional general information regarding opt-out from interest-based advertising from companies belonging to the Network Advertising Initiative can be found here: http://optout.networkadvertising.org/#!/, information regarding opting out through the Digital Advertising Alliance can be found here: http://optout.aboutads.info/#!/.</p> <p> <strong>Web Beacons</strong> – We may employ Web beacons (also called single-pixel gifs), which are customized links or similar technologies, on the Site and when sending you messages, newsletters, or emails or in using third party service providers. Web beacons allow us to (a) determine whether you have opened, or acted upon, a promotional email and which links you have clicked on in order to deliver to you more focused communications and other content, (b) allow us to count the number of users who have visited certain webpages and effectively deliver services, and (c) enable us to compile aggregated statistics and determine the efficacy of communications by using Web beacons from third parties.</p> <p> <strong>