Quality content

Quality content should be used. Quality content does not means good spelling or grammar, it means that content should be informative for visitors and should be relevant to the post. The basic rule for writing quality content is that you should first think about the which you are about to write do some search over the internet to collect relevant information about the topic, Do not copy paste any content from other sites because it is against the Google rules and you will never get high page rank by doing this . So you should write content  relevant o the topic and it should be unique.