Las Vegas – Pubcon 2012, Matt Cutts announces the link disavow tool:
It is a chainsaw of a tool and is not recommended in many cases. This works by uploading a text file within webmaster tools. Line by line, you can add links that you want to disavow. You can also disavow links that are domain wide by using domain:www.domain.com.
Here’s an example:
# Contacted owner of spamdomain1.com on 7/1/2012 to
# ask for link removal but got no response
# Owner of spamdomain2.com removed most links, but missed these
You essentially cannot negatively hurt a site by disavowing it. It is 99% like a nofollow.
The official video from Google:
The official help section for disavow can be found here.
Matt opened his presentation with a picture of him getting kicked in the balls by a certain someone:
Okay, not really…
We’ll have a video up soon of the luncheon talk with Matt.