In one sense, parts of the old internet hasn't died; dwarf fortress forums seem to be still going strong, as are other forums, if you know where to look, while new forums are springing up using different models.
On the other hand, sites like reddit made it so easy to start a community that interesting people who would've built a forum instead hitched their wagon to reddit, like AskHistorians.
Who's building a new, unstoppable, Google, that will just gather all this content up, and make knowledge freely available to humanity?