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Google’s disavow link tool proves that negative SEO is real.
As I understand it, the disavowal tool was created in response to webmaster requests to help them dig themselves out of unnatural links/Penguin penalties. If I'm wrong then please link to a statement from Google that supports another reason.
Question: Who should do this?
Answer: The post [Google's announcement post [googlewebmastercentral.blogspot.com] last week] says anyone with an unnatural link warning. It also mentions anyone hit by Penguin, but I keep getting asked about this. I’m going to reiterate that if you were hit by Penguin and know or think you have bad links, you should probably use this too.
Today we’re introducing a tool that enables you to disavow links to your site. If you’ve been notified of a manual spam action based on “unnatural links” pointing to your site, this tool can help you address the issue.
If you haven’t gotten this notification, this tool generally isn’t something you need to worry about.
If I'm wrong then please link to a statement from Google that supports another reason.
The truth is you have no idea why it was created.
We haven’t decided whether we’ll look at this data more broadly. Even if we did, we have plenty of other ways of determining bad sites, and we have plenty of other ways of assessing that sites are actually good.
We may do spot checks, but we’re not planning anything more broadly with this data right now.
Ok, so now we know there is a possibility that in the future Google may use the disavowal tool in other ways than has been stated to date.
Just thought I'd mention something interesting I noticed; in Webmaster Tools there is no link to be found for a Disavow Links tool for our site;
Slight rant, but I digress....links are always going to be king