By Contrast, when you click on a Microsoft-provided ad that appears on DuckDuckGo, Microsoft Advertising does not associate your ad-click behavior with a user profile. It also does not store or share that information other than for accounting purposes. This may be caused by several factors, including: Use ofwel a http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=3370220