Radar Networks, a pioneer of Semantic Web technology, today announced the invite-beta of Twine, a new service that gives users a smarter way to share, organize, and find information with people they trust. Twine was introduced and previewed publicly for the first time today, at the 2007 Web 2.0 Summit, a Web industry conference in San Francisco. Twine is one of the first mainstream applications of the Semantic Web, or what is sometimes referred to as Web 3.0