I provided a 350 word article review with low competition. But what I do is I continually add new content regarding to that niche every day. I learned a lot from Wolfmmiii the past week(s). I don't ever look at the Google Keyword tool anymore. I just go for items that I think will sell and have a low competition. Regardless if that keyword/product will get anywhere from 2-10 traffic a day; that's still traffic that can make a sale. If I build on with an authority site with 50-100 articles with a lot of low competition, then the traffic would increase, which can also increase on my conversions.
Honestly, I was really close to giving up Internet Marketing. Just because I felt like I had no direction, I felt lost with the "Penguin, Panda, etc." updates. But now I'm having a lot of fun just by having a strong game plan/strong direction. I provide content that people will want to see, and enjoy. And that's it. I've stepped away from any paid automated service (not saying they don't work), but for me at least, I'm a lot happier with the way I run my online business now.
When I see a sale like this, it just makes me want to keep on going! Build up and up and up! Don't stop! The goal is for me and for anyone else to just stay consistent, keep it even keel, and don't look back!
Anyways, I just wanted to share my experience. Peace!