The following are some simple tips you can follow to add more visibility and boost your trafic and SE rankings to your site:

• Make sure that your site is complete and with unique and rich content, after that submit it to Google, Yahoo, MSN and ASK.com. Additionaly consider to submit it to high PR web and open directories, and to some social bookmarking site like del.icio.us.
• Create two sitemaps for your site, one in HTML format to show to your visitors and another one to submit to Google, Yahoo, MSN and ASK.com prefered in XML format or in sitemap format.
• Avoid duplicate content and don't create multiple pages, sub-domains, domains or sites with different domain names but the same content.
• Make your TITLE (60-80 characters) and ALT tags descriptive, simple and keyword rich. Your Meta tag description should be 160-180 characters, and your Keywords meta tag must be 15-20 words maximum, also make sure that they are relevant and contained in your content.
• Optimize pages with Headings (H1, H2, H3..) containing your primary keywords, use text instead of images in your content, links and important subjects. Optimize your link text and make sure it is descriptive and keyword rich, when possible try to make it match the header text on the linked page. Also never use hidden text and links.
• Validate your CSS and HTML and check for errors and broken links.
• Make sure you use SEO friendly URLs if your site contains dynamic pages because spiders have difficulty indexing dynamic pages.
• Use a Robots.txt file to manage and control search engine spiders that index your site. You can allow and disallow spiders and choose directories you want to be crawled and indexed.
• Avoid links to bad sites like phishing, hacker, crack, gambling, porn or scam sites and don't attempt to join in link schemes, excessive reciprocal or exchanging links. Do not buy or sell links. All of these will greatly affect your rankings.

Best regards,