Thanks for sharing this, some great tips there that many people miss when they work in internet marketing. Testing is huge. Learning how to market online is not an exact science so it pays to test, because things are changing all the time. I've found that with articles hubs and squidoo lenses.
Now a days it is difficult to find a good articles especially in the marketing side because everyone gives same kind of information but i have gone through the article and it is really nice.
You shared valuable things for us so it might be useful to others also, i used to face many problems to promote the products but now i came to know lot of stuff.
Thanks for the heads up on the article, I've been looking for one on the subject that is short and to the point like that article is. Plus if its a top 10 list I can pretend its Jay Leno instead of work.