You may not have thought about articles much, except they're hard work to churn out! But imagine having someone else's revised article - made available and added to your blog - on a continual basis. (For me 28 in 2 days) The search engines love fresh content, adsense increases and affiliate products get a better go. You just sit back and watch the relevant articles populate your site. In fact you get a chance to approve (or not) to them. It's a free system, I suppose with limitations, I don't know I just though it such a good idea, I jumped in! I'll be writing articles myself for other people's blogs too pretty soon. Good affil marketing. So traffic isn't too hard when you're getting new content added, including youtube video, too. Its free to join. A very savvy system in my humble opinion for what it's worth.