1.Write and submit articles . It is a classic, but it works. This will be indefinite traffic stuck in the search engines for you. Write quality unique articles, not articles that are rehashed or provide no insight to readers, which is a huge problem these days.
2.Write and submit press releases, think prweb after you do one.
3.Write and ping blog entries. Always make sure to link back to your website with your blog posts. Try making multiple blogs and have them all link back to one main site.
4.Make sure your website is listed in DMOZ: http://dmoz.org/.
5.Advertise your website in the appropriate categories at Craigslist. Try posting your ads in the most populated cities in the world.
6.If a niche related forum that you frequently visit allows signatures, then make sure to add your website url in there.
7.Make sure to view related products on Amazon.com. You can try and take some customers from your competitors here by providing your own url if the product is similar.
8.Review websites in your niche on Alexa to try to take some of their traffic by including a reference back to your site.
9.Review some related products on epinion.