I work with a large group of community sites and we were approached by a company called Text Link Ads to purchase links on our sites for SEO purposes. This means we can't add "nofollow" and the resulting page is crawl-able. This goes directly against Google's policy but I think it would be tough to find out exactly what we're doing. It could be a great revenue source and this company has many, many sites they work with. That said, this sounds like what you say right before something bad happens.
So, two part question: Has anyone worked with this company before? And should these links be avoided or are they not so bad?
Thanks in advance!