The Internet Computer[0] hosts whatever kind of service you can cram in a smart contract form-factor. In exchange for having to deal with things like oracles to retrieve information from the outside world, it costs absolute peanuts[1]. I tend to use it whenever I want to PoC a web app because it's usually lower-friction than a VM. Unfortunately there aren't that many things to show as an example that aren't just NFT silliness, but one big one is OpenChat[2], which also shows off the basically zero-friction single-sign-on[3] that can't be tracked across services.

Will it pan out? I have no earthly idea. But it's cool enough to try.

[0]: https://internetcomputer.org

[1]: https://internetcomputer.org/docs/current/developer-docs/dep...

[2]: https://oc.app

[3]: https://identity.ic0.app

(unfortunately obligatory: I am not a bot. please do not downvote singularly because of linking to a blockchain service, in response to a question about them.)