What can you do?
“Of course, we aren't disclosing the actual ranking signals used in our algorithms because we don't want folks to game our search results…” -‐ Google
Google does make specific recommendations on its blog: ü Remove (or redirect) low quality pages ü Merge or improve the content of individual shallow pages into more useful pages (make more robust) ü Move low quality pages to a different domain could eventually help the rankings of your higher-quality content. ü Don’t overload with ads. ü Create unique, thought leading, and linkable content – Rewritten content that is not substantially different will no longer help.