First time i saw a thread about this on Digital point on 23rd.
BlogSpot domains flushed out of Google Search?
Where many webmasters reported the fall in there traffic for there BlogSpot domains and .info domains !! Yesterday Aaron Wall of SEOBook also reported the same thing in his blog Google Temporarily Purges .info Domain Names !!
According to him:
I do not own too many .info domain names, but a couple of them that I do own have quite solid link profiles. In spite of this, on May 23rd all of my .info websites (including search-marketing.info) disappeared from Google’s search results. And then the next day it returned. It may have just been a ranking glitch, but many other webmasters had the same issue..
Although Matt or any other googler haven’t said anything about this but if we will look into the past where matt had said in his 2008 predictions:
A top-level domain (TLD registry) will offer domains for under $4. The result will be another TLD blighted by spammy domain registrations.
Remember GoDady offers .info for just $0.99 !! So what Matt Cutts had said in his post 2008 prediction might have some relation with this flush or you can say Google Experiment !!
This might be a small experiment from Google, so as to check the search behavior when blogspots and low quality tld’s are removed from the results, like do they come back to the search engine after visiting any searched website, time spent etc. Seems like serps for blogspot and other gTLD’s are back though.