My answer to What is the best marketing technique to have somebody stay on your website?
Answer by Ken Larson:
Establish a network like a wheel. The hub is core content (web site, blog, books, articles, useful materials). The spokes leading from the hub are the tools to network content that is linked to the hub.
Contacts are the engines that power the wheel.
Content is the fuel that feeds the social networking contacts and powers the wheel.
As the wheel turns, the quality of the networking improves with feedback and the wheel climbs the optimization hill of the major search engines (SEO).
Limiting factors are the quality of the core content and knowledge/persistence in networking.