Google like Unique and fresh content. So try to add value to your content. Google is always looking the web for new content.
If you will provide quality content then the search engine will crawl and index your site fast.
Content is more important for the website. today content is the king for getting ranking and increasing the page rank.after penguin and EMD update contents becomes best for getting ranking.
Yes content is the king for promotional activity if you are using a high quality and informative content then no need to work our for off page activity very much.
Your site will rank easily with the help of your content. Hope this will useful for all the webmaster.