LinkedIn changed the way people navigate the world of work. It's hard to even remember the days (though not that long ago) when jobseekers opened the back of a newspaper to scan the help wanted ads. Well, LinkedIn was the brainchild of Reid Hoffman, one of the Silicon Valley visionaries who recognized, back in the 1990's, the internet's potential for a new kind of social and professional networking. In this episode he talks about how his background in philosophy led him to tech entrepreneurship. And he provides some fascinating stories about the early days of the online revolution.