I've been paying a lot more attention to structuring my articles recently. My CTR has sky rocketed from about 7% to and average of 72% (over the last two weeks). A recent article has a CTR of 93% from 124 views (and counting).
It is amazing what a little thought does when writing your contents/sales letter/articles. It is all too easy to get stuck in the "numbers game mentality" where you get obsessed at simply churning out the articles.