I have a photoshop tutorial on my website, the tutorial is at http://www.tutorials-db.com/articles/index.php?Article_ID=2. Notice that there's adsense at the start and end of the tutorial. At this time, the tutorial has received 500 views but 0 clicks. Why is my CTR so low, is it because the adsense is separated from the tutorial with a horizontal rule or is it that google is displaying irrelevant ads? Any ideas how to improve my CTR?
Yes, those lines are definitely not going to help. I'd also consider trying to give the links in the adsense the same color as the links in your menu: test that. The line should just go, no testing needed.
I'm not at 1000 views and no clicks, do you think this could also be because of the traffic mainly coming from tutorial directories?