The website ranking game has completely changed in the search engine arena and a websites authority and relevant content is much more important. Producing factual and good quality articles can earn votes from people sharing the content across the many social, website and blog networks around the ever expanding internet landscape. These votes alone produce favour with the search engines and can shoot a website up the rankings rather quickly.
Think of it this way: What do you have more chance of hitting, a distant, tiny target or the broad side of a barn? For the sake of search engine optimization, you want your website to be the broad side of barn. The more quality articles, or unique readable content, your website or blog offers to search engines (and therefore the general public) the more exposure your website will receive from major search engines.
In this day and age, it is by far the one of the hardest tasks to do online always coming up with fresh content for Google to devour. I love how easy Spin Re-Writer makes it for online marketers to get on with their business and not have to worry about the big G penalising their sites. Of course it's not just about fresh content, but it is certainly a big factor. Thanks Aaron and the team...:)