Ask HN: Sponsored Links in Emails/Articles?

I have a website that serves a niche market and am looking for ways to monetize it, mainly to keep the servers running. My main idea is to include sponsored links in marketing emails and include sponsored blurbs in my blog posts.

I've been searching around, but can't find some SaaS to handle this type of "partnership." I basically need to track the things that the advertisers would be interested in (views, clicks, user's country, etc.) and a way to automatically collect money from them based on agreed-upon criteria. So, some sort of contracting system would be nice to.

Anyone know of a software to handle this without having to write (too much) code?