I made a tweet about my current preference of provider for linking to posts within my blog a few days ago. Presently, I’m using Outbrain. Thus far, it’s been fairly simple to use. One word of caution: as a blogger pay special attention to the words you use. You may have some outside posts that pop up that you may deem the content linked to as unworthy. that’s only happened twice since I’ve been using the service. Overall, I would recommend you using Outbrain on your blog too.