Flickr or our advertising partners may use these technologies to deliver advertising that is relevant to your interests, for example if you are already a Flickr customer, they could be used to not show you advertisements to join Flickr. These technologies can remember that your device has visited a site or service, and may also be able to track your device's browsing activity on other sites or services other than Flickr which also make use of the services of these third parties. This information may be shared with organizations outside Flickr, such as advertisers and/or advertising networks to deliver the advertising, and to help measure the effectiveness of an advertising campaign.