Hi there
Great to see a content marketing strategy generating "extra" traffic. In order to pass on an SEO benefit, you may want internally link from within the body of the article to your core landing pages. That may pass on "the strength" of that page, as it were. With internal links, you can link to your landing pages with your target keywords a bit more often that you normally would when link building from external sites, but don't overdo it. (I'd say 20-25% of links with your keyword in the anchor text would be OK for internal links - please don't do that for external links!).
Of course, the main objective I see would be to capture that traffic that comes in on those blog/resource pages and get it to convert. Have you looked at running an email widget next to the blog? Perhaps you can use an exit popup, popup, popunder or interstitial ad as well. These methods are more aggressive and "in your face", but contrary to what you may think they really do convert.
Hope this helps.