Quality readable content is key here. Google, for example, will recognize that people are leaving your site soon after arriving if they perceive that your site or blog is full of junk content. This is called "bounce rate." If your bounce rate is high, then people are quickly leaving your site. But for the sake of your business, to build your online reputation and brand, you want people to visit your site, stay for a while, and then keep revisiting over the long term.
Spin Rewriter is probably the best product in the market... I get great EPCs promoting it and, what's most important to me is that my customers actually love the product. Very low cancellation rates and practically no refund rates. All around it's a fantastic product — if it fits your business at all, then you definitely have to get on board and promote it!
Anyone can do this, all you need is a computer and the ability to string a sentence together. You can write original articles and submit them to article directories and get paid. You have to apply to these sites and may or may not get turned down. If you should happen to get turned down then just keep plugging away until you find someone to "hire" you.