Google took action on blog network My Blog Guest. According to Cutts: "Today we took action on a large guest blog network. A reminder about the spam risks of guest blogging: http://goo.gl/cnkoFA " It looks like at this point in time, it was just the actual domain myblogguest.com that was penalized, but according to Barry Schwartz's post he thinks that webmasters will soon start to see link warnings in webmaster tools. We will have to see if that is the case. Anyone notice anything yet on your end?