Hi its a long time with you. We are discussing about how content plays a major role in website.
Yes good content will always help us to boot up our Page Rank.
This is the basic step to follow while creating a content for a website.
If you find the google webmaster guidelines we can come to conclusion that websites with duplicate content will always be penealised by Google. So to avoind google penealising we should be aware of a good content.
Make sure on what your article is about. Its very important, the article should be related and unique.
This is what search engine bots wants and if it finds your article then you can add value.So make sure your site is always up with a good content.