We know that for some time now Google has been less than enamoured with the practice of paying for inbound links to pass page rank and as such improve key term ranking for commercial websites.
Now they have gone further and have set up a reporting service for Google account holders to report sites that they believe to be buying or selling links to assist with SEO, see link ‘why should I report paid links’.
Evisible do not include link purchase in any of our SEO strategies, clearly a good thing too as Google have been known to penalise sites by dropping rank and in some cases, removing listings all together.