When your PPC campaign first goes live or you add new keywords or creative to your campaign, do the search engines give your new additions the benefit of the doubt (regarding them as "innocent till proven guilty of being irrelevant"), or are they deemed "guilty till proven innocent (relevant)?" Over time, the answer to this question has changed and it will likely continue to change as the search engines find the right balance between advertisers' need for speed in getting listings live and consumers' desire to see listings that have proven themselves relevant in comparison to their peers.
See the full story at: http://www.clickz.com/3634629
See the full story at: http://www.clickz.com/3634629



