One of my projects is a database with companies, that are local in my country. Everyone can add entries and generate unique content. They can even add a ******** url to their site. I have great SEO, and many visitors (~1000 UV /day). Adding content is really easy (wiki-style), and people don't need an account. How do i get people to contribute to the website? Currently all the content has been added by myself under different nicknames, which already shows up in google very much, at high rankings. Having your company in my website would seem very beneficial for a company, yet almost noone adds his website. Anyone here with similar experiences, or a solution?