good content for seach engine optimised (SEO) websites
All search engines have areas to help the design of websites and give advise on how to SEO your website or make it search engine friendly.

the most consistent advice is good content only on your website.
Great content will get people linked to your site and talking on their blogs about you website

Links to you good content are really good for your SEO, search engine optimisastion, as this means that some one thinks you are worth linking to and the search engines make that a point in your sites favour.