On September 29th, 2012 Matt Cutts sent a tweet about Exact Match Domain and said that “websites with exact match domain and low quality content will see a drop in rank in small upcoming Google algorithm change”. Have a look:
In the gDays event in Gurgaon, I was told by the Google Search Quality team that such update will definitely be coming in future but I did not expect this update to come so early. But Search Engine Round Table says in its blog that 2 years back Matt publicly announced about exact match domains. Adding to it, Matt says that the change “affects 0.6% of English-US queries to a noticeable degree”.
SEOMoz shared a chart and gave list of 41 domains that fell out from top 10 rankings. Have a look: