HOW TO: Maintain good quality content
Creating compelling and useful content will likely influence your website more than any of the other factors. Users know good content when they see it and will likely want to direct other users to it. This could be through blog posts, social media services, email, forums, or other means.
Organic or word-of-mouth buzz is what helps build your site's reputation with both users and Google, and it rarely comes without quality content.
Good practice for content