Cplog stands for В«copypaster's blogВ».
Yesterday I discovered two "blogs", where all posts were compiled from others blogs, include mine in Russian (notes.sochi.org.ru). Yes, this is well known trick for splogs (spammer's blog), but cplogs aims to collect revenue from context ads placement.
This is dark side of context ads services with revenue sharing (ex. AdSense, YPN, Begun.ru). Obviously, those services should have strict premoderation for every sites in their system and/or use toll of unique content for a site before to show commercial ads on it. Otherwise, we will have tsunami of doubled/copypasted/hijacked content in blogosphere, for one writing blog will be dozens and hundreds copypasting blogs...