As you know, there are alot of websites going black to dissent SOPA and PIPA. Google has already offered blackout SEO advice but, they distinct to take it one step further by slow down their spiders yesterday.
Pierre Far from Google places on his Google Plus that Google is slowing down GoogleBot’s crawl activity to cut down the effect on their website’s search positions, if they did not follow the Google SEO advice from yesterday.
Pierre Far said:
Hello webmasters! We realize many webmasters are concerned about the medium-term effects of today’s blackout. As a precaution, the crawl team at Google has configured Googlebot to crawl at a much lower rate for today only so that the Google results of websites participating in the blackout are less likely to be affected.