Today Google Announced that they have official turned off or blocked 100% of the referrer data on search queries from organic search traffic. This might be the single biggest change in SEO since Google took over Yahoo’s search results and their directory was no longer the driving force of their traffic.
Understand, Google doesn’t like SEO people no matter what they say. They don’t want someone else effecting the outcome of the search results. They want to be 100% in charge and every single one of their efforts and changes clearly represents that 100%.
There will always be some version of SEO, but it will continue to be limited. I wouldn’t say this is the day SEO died, but I would say it is the day SEO was injured severely