We get a lot of requests for placing text links into our posts to spammy sites like "cheap car insurance!" and crap like that. lately they've been offering good money and often want the links to be inside our articles which, frankly, makes me cringe for my editorial integrity. So I've been turning those down, but sometimes take a few at the very bottom of articles. Looks terrible, but we need the revenue.
What's your opinion?
Terrible idea? Will this destroy my credibility and/or SEO? Where do you draw the line with regards to how spammy you'll allow these things to be?