Google tweaks algorithm to reduce visibility of low-quality sites
New York Times
Google didn't say so explicitly, but the change appears to be directed in part at so-called content farms like eHow and Answerbag, reports Claire Cain Miller. Google says the tweak will affect 11.8 percent of search queries. || The Official Google Blog: "It is important for high-quality sites to be rewarded, and that’s exactly what this change does." || Demand Media: "A content library as diverse as ours saw some content go up and some go down."