Wikipedia.
Ask HN: What's the greatest thing on the Internet?
11–16 of 16 posts
Re: Ask HN: What's the greatest thing on the Internet?
#12Reddit.
Re: Ask HN: What's the greatest thing on the Internet?
#13The end-to-end architecture of the IP layer, enabling the level playing field for new apps and protocols, and letting anyone be a content provider or p2p node.
Re: Ask HN: What's the greatest thing on the Internet?
#14Re: Ask HN: What's the greatest thing on the Internet?
#15zombo.com
Re: Ask HN: What's the greatest thing on the Internet?
#16Huge collection of porn.
Seriously though, I would say the fact that in theory, we can have knowledge accessible by anyone on the planet, and that's awesome. I believe on day it will.