Doug Raises some good points, however I would also urge you to consider that you may want to stop some people clicking on your ad.

For example if you offer a service that is priced at £100 per hour and in the market there are other services (not the same quality as yours) that are £50 per hour you would not want to spend money (Via PPC) on those who do not have the budget to pay for your service.

Hi Peter

Yes that is correct, if the page you are trying to rank is for the phrase "dog training" a keyword rich anchor text would be one that had dog training as the anchor test

Hope this helps

Sean

I would imagine the reason they are still showing up is a combination of the sites not being crawled often or deep enough and the delay on the  updating of the links tools.

You could try getting the sites that used to link to you but no longer do re-crawled especially the pages that used to have your links on.

I believe this should see a refreshing of the links tools in time.

I hope this helps

Sean