We worry a lot about Search Engine Optimization (SEO). I suspect we don’t worry enough about Social Curation Optimization (hereby dubbed SCO). Social curation plays a large role in how people find content on the Web. Google’s Eric Schmidt was recently quoted as saying:
Social networking sites like Facebook and Twitter also allow users to leverage their social networks to find answers to their questions. Google is therefore competing with all methods available to access information on the Internet, not just other general search engines.