I have noticed a surprising difference in the quality of the organic search engines traffic for one of my sites - while the MSN traffic is the largest in volume it's tottally inferior to the Yahoo traffic in matters of bounce rate and average time in site. The G traffic, the paid G traffic and the Live are even poorer, in this order (for example I have 65% Bounce rate in Yahoo and over 90% in G). The keywords are not the same but I didn't notice any interesting difference in this part. The niche is health. The site looks Ok and has several internal pages. If this means that Yahoo people are good customers ( and this might mean something else) I wonder how can I make Yahoo SEO.