Oboulo.com is a website that allows customers to access unique documents. The site offers documents that can be purchased individually by chapter, providing specific information more affordably than buying an entire book. Owners of the site determine pricing for documents based on their size and content. Customers have the choice of three revenue models for the site: a fixed fee per published document, a fixed fee plus percentage per transaction, or a fixed percentage per transaction. The business model demonstrates the Long Tail Theory by offering niche information to customers rather than requiring them to purchase full books.