The Internet is an ever growing and changing environment. Most of the links provided on Advertising World take you to sites not under our control or supervision. At the time we include a link we do check it for appropriateness, but we cannot guarantee that every page on each site is appropriate, nor can we make any assurance that a site's material will always continue to be appropriate, through subsequent changes. We do our best to keep links active and useful, but the sheer size of this collection makes it impossible for us to catch the changes as quickly as they occur. We apologize for any inconvenience caused by inactive or inappropriate links.