Link Early, Link Often
One of the biggest factors Google looks at is the hyperlink. Google looks at both links to and from your website. Google looks at the words you use in links to help determine the content of your page. Use links within web pages as a way to emphasize keywords. Rather than saying, “click here to learn more about SEO” you should say: Read more about SEO (Search Engine Optimization). Learn more about why hyperlink names matter to Google. Links from other websites to your website are used to determine PageRank. You can improve your PageRank by exchanging text links with other relevant websites. Banner exchanges are not as effective, and pages that want to charge you for this service, are probably already known spammers.
Social networking sites can be a good way to promote a site, but most will not affect your rank directly. Google+ promotion may be an exception.
Make Your Graphics Search Friendly
Keep the Flash to a minimum. People may enjoy reading Flash, but search engines tend to skip right over it. It’s also bad for phone traffic. Give your images <alt> attributes. Not only does it make your website more accessible to the visually impaired, it also gives you another chance to place your keywords where Google can see them.
Good Design Is Popular Design
In the end, strong, well organized pages are pages that Google tends to rank higher. They’re also pages that tend to become more popular, which means Google will rank them even higher. Keep good design in mind as you go, and much of the SEO will design itself.