I am new to SEO. I need to know how articles help us to optimize a website. AND I ALSO WANNA KNOW; what are the sites which i can use to upload articles which i have prepared. I need some sites to submit my articles
There are literally hundreds and thousands of article submission directories. You can search Google or search here on this forum for article directories and you will get a bunch of results with useful links. I personally use www.ezinearticles.com. I do not find any other article directory as good as Ezine so I do not bother submitting the same article to like 1000 directories. Although, many people are going to suggest you to add your articles to articledashboard.com, goarticles etc Articles help you becuase you get your choice of at least two links pointing towards your website. Most of the article directories are nofollow free so the link is legit and does pass PR. More importantly, people reprint articles using RSS and if you have a good article, the chances is that many webmasters are going to print it on their websites with your links pointing back to your website (some freaks do take out the links). This is viral marketing of both your product/services and your website. You get natural backlinks and this will help you improve your SERP. Also, you can expect a good amount of traffic from different article websites. I hope my answer helps you