Content marketing is a strategic marketing approach focused on creating and distributing valuable, relevant, and consistent content to attract and retain a clearly-defined audience and, ultimately, to drive profitable customer action.
Google disavow tool allows publishers to tell Google that they don’t want certain links from external sites to be considered as part of Google’s system of counting links to rank web sites.
Google’s link disclaimer tool permits publishers to inform Google that they don’t need sure links from external sites to be thought of as a part of Google’s system of enumeration links to rank websites. Some sites need to try to to this as a result of they’ve purchased links, a violation of Google’s policies, and should suffer a penalty if they can’t get the links removed.
These are few useful tools for removing low quality or spammy links from your site -
LinkDelete, Open Site Explorer, Rmoov, Ahrefs, Linkquidator, MajesticSEO, Google Webmaster Tools, Elbow Grease, Remove’em.
Google created the sandbox with good reasons. Google was trying to discourage spam sites from quickly reaching the top of search results, getting dropped off google, creating a new site and repeatedly showing up high in search engine.