I read an article today in WebPro News regarding an experiment Google are running to allow users to specify the sites they want to prioritise in their searches. Read the full article here. From an SEO perspective this means that different people will see different results thus making the traditional ranking report obsolete. From a marketing perspective it simply moves the priorities back to marketing. If you have good content on your site, people will list them as preferred, and a good message will get you onto more mainstream sites & blogs that people are already reading. Thus ultimately, the way to measure success is “Are people visiting your site and buying from you”. Now that is true ROI.