Comparison of Ranking Changes Before and After SpamBrain Rolled Out

https://www.mediafire.com/file/iuk1t4lrnzcwsg7/pdf-55548-93958.pdf/file

SpamBrain did not arrive like a polite memo. It felt more like someone kicked the ladder out from under the old playbook, the one where you could inflate pages with “almost-relevant” content and still sneak into the top spots