Have you got a message like the one below from Google? If so then it means that Google has discovered some links that it doesn’t like in your link profile and you need to act fast to fix things.
Google Webmaster Tools notice of detected unnatural links to http://www.yoursite.com
Dear site owner or webmaster of http://www.yoursite.com/,
We’ve detected that some of your site’s pages may be using techniques that are outside Google’s Webmaster Guidelines.
Specifically, look for possibly artificial or unnatural links pointing to your site that could be intended to manipulate PageRank. Examples of unnatural linking could include buying links to pass PageRank or participating in link schemes.
We encourage you to make changes to your site so that it meets our quality guidelines. Once you’ve made these changes, please submit your site for reconsideration in Google’s search results.
If you find unnatural links to your site that you are unable to control or remove, please provide the details in your reconsideration request.
If you have any questions about how to resolve this issue, please see our Webmaster Help Forum for support.
Google Search Quality Team
We’ve had a few people contacting us asking what to do about this message recently (Google has sent 700,000 messages in the past 2 months). The answer is pretty straightforward – you need to remove all the bad links ASAP and then submit a reconsideration request. We don’t recommend that you ignore this message.
Actually doing this can be very hard if you don’t have the contact details for all the links you have built. Lots of spam sites have no way of getting in touch with them to remove the links.
If you would like help identifying and removing the bad links or consultancy on how best to manage this situation please get in touch. We’ve had experience dealing with this issue and can help make sure you remove the right links and don’t lose rankings.