SEO is very important thing to think if you are starting a new website. The first thing that you have to do after buying a domain is to design a nice theme for your website. After creating the theme choose a topic for your site. Create the meta tags and meta content for your site based on your topic. Then you need to submit your site to search engines. You have to submit to both the bigger search engines like Google, Yahoo, MSN and many smaller search engines. Next thing you have to do is to submit your site to Web Directories. You need to think of Google PageRank as it will greatly effect your site. So to get a good PR you need to get good Backlinks from niche sites. So think about getting better Backlinks.