Even Yahoo, which screens its information manually, has the problem of too much information to keep it all up to date. Moreover, centralized search engines cannot retrieve dynamic content from pages that are built on the fly from e-commerce sites, database searches, or user interactions. Users have been screaming for better search engine technology since the start of the Web's popularity in 1994. PPNs decentralize information as well as the search capability. They also provide access to dynamic content, rather than the static information provided by traditional search engines.
Content providers can define which files and content are shareable.
This approach is a departure from today's search paradigm, in which search engines merely point users to the correct Web site, forcing the user to navigate to the information of interest. With PPN capability, the journey is also the destination, because users can search for and go directly to the information of interest, as defined by the content providers. The potential behind this is remarkable. Simply select content and share it. It's really that easy, and the power of sharing content is limitless.