Microsoft's Adcenter has gone a step ahead of Google Adwords in improving the strength of "Negative keywords" feature. The Adcenter product team has released a new feature that can be ideally called as "Union of Negative Keywords."
In Google Adwords the negative keywords added at the Adgroup level will over ride the negative keywords added to the Campaign level. But in Adcenter, negative keyword added at the Campaign and Adgroup level will work in conjugation to improve the quality of traffic. Caution! Any business related negative keywords added to campaign level can spoil the quality of visitors if not not carefully scanned and removed.
Read more by following this link http://community.microsoftadvertising.com/blogs/advertiser/archive/2012/03/15/microsoft-advertising-adcenter-new-negative-keyword-behavior-.aspx
In Google Adwords the negative keywords added at the Adgroup level will over ride the negative keywords added to the Campaign level. But in Adcenter, negative keyword added at the Campaign and Adgroup level will work in conjugation to improve the quality of traffic. Caution! Any business related negative keywords added to campaign level can spoil the quality of visitors if not not carefully scanned and removed.
Read more by following this link http://community.microsoftadvertising.com/blogs/advertiser/archive/2012/03/15/microsoft-advertising-adcenter-new-negative-keyword-behavior-.aspx