Content is a key to search engine visibility. High-quality, search-friendly content allows businesses and individuals to populate their sites with keywords and valuable information for visitors. Both keywords and great information are important to search success.

A few key points from this infographic:

76% of marketers who have SEO campaigns in place invest in content creation.

Bing uses Facebook Likes as a ranking signal for logged in users.

42% of consumers read articles and blogs for more information about potential purchases.

Google advice: Make a site so fantastic that you become an authority in your niche.

1 in 5 social media posts include links to more content.

27 millions pieces of online content are shared every day.

For a larger version of this infographic, click here (twice): http://cdn.brafton.com/wp-content/uploads/2011/10/WhyContentForSEO_FINAL_2.png.