LinkedIn's Hoffman - What is Web 3.0?

According to LinkedIn's Hoffman: Web 1.0 consisted of files, where users operated under pseudonyms in chat rooms; Web 2.0 is the emergence of Web apps, where a community of users utilized their real name. Finally, there's Web 3.0 - unfortunately, the platform that it uses isn't a mobile one, but one that's predicated upon data. As a general principle, you should only ask for data when you think you can provide a value proposition for users.