The Yahoo Search Marketing blog announced the new pricing changes are now in affect within the auction pricing model used by Yahoo Search Marketing. Overall, Yahoo said most advertisers should notice a decrease in their click spend.

Yahoo also announced a new report that shows which Yahoo partners are clicks are coming from and how well they are performing. The report is named the ad delivery report and can be used to determine which partners you should block from displaying your ads.

On the Microsoft front, adCenter has added a “Ad Preview” tool. The tool doesn’t just show you a preview of your ad, as it would appear on Bing.com, but also helps reduce “unnecessary impressions and accidental clicks.”

Here is a picture of the tool:

Finally, a blog post from the Rim Kaufman group, a large PPC agency, shared that overall, his average client is seeing a 6.7% growth in August in PPC share from the major three engines. So maybe all that ‘bing’ for Bing is paying off (sorry, I had to).

Related Topics: Microsoft: adCenter | Microsoft: Bing | Yahoo: Search Ads

About The Author: Barry Schwartz is Search Engine Land's News Editor and owns RustyBrick, a NY based web consulting firm. He also runs Search Engine Roundtable, a popular search blog on very advanced SEM topics. Barry's personal blog is named Cartoon Barry and he can be followed on Twitter here. For more background information on Barry, see his full bio over here. See more articles by Barry Schwartz