Why Blogs that Allow Guest Posts Will Be Penalized in 2013
ProBlogger
FEBRUARY 14, 2013
Just as low-level article directories (ezinearticles, articlesbase, and others) got hurt by Google’s Panda Update in 2013, I predict that Google will hurt sites abusing guest blogging in 2013. Quite simply, Google’s spam team has warned us. No, you don’t have to put Nofollow tags on every outbound link; Google does not want that.
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