Today I have just come accross to know that Google is giving warning message to the webmasters who have public blog network. Can anyone let me know details about this?
@RoopatgSep 25.2014 — #A private blog network (PBN) is a set of blog sites,which are intentionally built to help other websites achieve top rankings through one-way links.PBN(private blog network) sites,that are used to manipulate their rankings. Google has been slowly rolling out a new update that deindexes a ton of PBNs.If you got effected by this update,you will get a “thin content” message which can be seen if you click on “manual actions” in Google webmaster tools.