[Vinnl]

It's not dead! It's just no longer at MIT (as is also mentioned on the website you linked). Tim founded a startup called inrupt (disclosure: I work there, opinions my own) that aims to stimulate commercial adoption. The links in the sibling comment by rapnie are an excellent place to start.

[pdimitar]

How does an organisation even stimulate others to adopt Solid? I cannot imagine your daily activities. Can you elaborate, assuming you would be comfortable to do so?

[Vinnl]

I can't disclose everything (I'm not involved with all the parts of the company), but the most important way in which I contribute to that is by building developer tooling and writing documentation for engineers looking to write apps on Solid.