GameFAQS.com has been around since the 90s. They housed both user-submitted and commercial guides/tips/cheats/etc, and free.

Now, this guy has a great principle on the tech giants being a threat for a competitive, efficient economy, but I'm just not with him on this one. His only marketable niche would be to get the top paid gaming professionals (like the Dota 2 team that won $6million this month), and provide a market place for the top talent to coach, but he didn't see that, and it's a very small niche to begin with.