Content basically includes what you see on the site: the text, graphics, and even links to other websites. You should not use excessive graphics because they are not Search Engine Friendly plus heavy graphics normally put the users out when they get downloaded, especially over a slow network.

Thousands of articles, books, and forum entries are available on how to make your website search engine friendly, but ultimately, one rule stands above the rest: Unique, high-quality, unduplicated content is the king.

HI, I think Content is most powerful for any website promotion, unique content  is very necessary to all work in SEO, so it's king of SEO.

I absolutely agree that content is very important in SEO marketing. I heard that good content will attract readers and your target market easily.