Article submission is one of the most important and effective method of the off page optimization.On this method you need to write a content using your site and key words.This is the only method where you can use all your key words.So, it can improve the ranking of the key words.

Articles helps in two ways first they are good source of traffic themselves second they give good back link that’s helps in improving SERP. Articles which are written by keeping in mind SEO techniques and rules hold good position on search engine, which gives good traffic later on.