Negative SEO: Turn Off Inbound Links You Don't Trust - But Not With Google | Google Penalty World |

From the official announcement: "...we’re announcing the Disavow Links feature in Bing Webmaster Tools.

Use the Disavow Links tool to submit page, directory, or domain URLs that may contain links to your site that seem "unnatural" or appear to be from spam or low quality sites.

This new feature can be easily found in the Configure Your Site section of the navigation."

Find out everything here: