One of the blogs I read regularly is the one by Scott Young. Scott got some fame by arranging his university degree online, for a few thousand dollars. Especially in the US, where the costs for a college degree has gone totally out of hand, this was unheard of.
Scott has been writing his blog for a very long time now, and/but keeps coming with interesting thoughts on learning and other things.
Scott also wrote the book Ultralearning about effective learing.