at first you will subit your site all searh engine then you write good article in your web site. After that seo in your site.

If you don't want to pay for any advertisment then I think Social Media Optimization would be perfect choice for you. Where you can promote your business to targeted audience by posting useful information to them.

Study about Seo First then try to put quality content on your website.Learn about meta tags and Link Building Techniques.

yup you should go towards SEO

blog commenting and social media networking helps more to get traffic of website.

Use Social sites to viral your unique and genuine content.Share your updates and events happening.Follow the relevant people to your products.Make qualitly back links of your site.Content is the King In Seo,so you should focus on it.....:)

To have traffic in website: social networking, quality content and press release.

content is the KING,

Learn some socializing concept od social media & do some seo thing to get users at ur site.

first : on-page optimization to be done properly, then go ahead....

There are others way like facebook sharing twitter , stumble upon which bring traffic to the website . you can also use press release ,classifieds to drive traffic for you website.

you can do proper keyword research
also blog commenting
forumposting

Do proper social media and link building .