The methods which helps to build backlinks,traffic and increase page rank of website or blog is considered as seo methods.Directory submissions,Article submissions helps to get backlinks for your websites.These are free seo methods.You can use for getting small amount for traffic.If you need massive traffic you can implement paid seo service.I would suggest the site
Tucktail.com here you can get search engine visibility service at low cost it will promote your site in many ways increase traffic and page rank for your website very soon.