Back in August I wrote a post about using Yahoo's Assist attribution metric to help advertisers lower their CPA. This morning I came across a case study that showed how one marketer used assisted attribution to reduce their cost-per-acquisition 25.6% while also increasing sales for non-branded key terms by 15.2%!! AWESOME! Here's the link to the case study: http://www.marketingsherpa.com/article.php?ident=31487 Here's the link to my August blog post: http://mattlillig.blogspot.com/2009/08/want-to-lower-your-online-cpa-then.html