That may be your problem right there. Change it to product reviews, store recommendations, widget alternatives and rarities- in short anything that revolves around your widget strictly as a commodity will do better. Focus on the product, not the hobby. Copy about rare and sought-after editions of a video game or music CD will probably do better than cheat sheets and a fan forum.
Never do News and How-to's, unless the news is strictly about when a product will be available.
The other consideration is to look at the cost of the product, estimate the markup, and consider the amount of units that are moving daily. A video game might not pay per click as much as a click for a product that is worth $600 - $1,000 dollars. However the demand for the video game, if it's a blockbuster (and there are few of those, really) will make it up on traffic over the thousand dollar purchase.