martinibuster - 6:16 pm on May 6, 2010 (gmt 0)
Fwiw, I had been researching certain products and later on, on an unrelated site saw an image ad for discounted products. I clicked the AdSense ad and bookmarked the site.
If you want your CTR and earnings to go up, your topic has to be about a product. It helps if site visitors are not advanced but newbies. It also helps if typical keywords are questions like How do I... Where do I find... etc. Check if you have those kinds or phrases in your copy.