In October, Google rolled out its "disavow" tool that allows site owners to disavow links to their site.
Why is this important?
Google has become more particular with their algorithm, taking into account poor quality or paid links. This means that hundreds of irrelevant, unrelated links to your site may cause problems, reduce page ranking and positioning and traffic.
Webmasters are now tasked with cleaning up backlinks that may be years old or were put in place by a previous SEO company or developer. The Google webmaster disavow tool makes the process that much easier, identifying and then disavowing possibly damaging inbound links.