Thought I'd share....

Some of it seems pretty cool, though much of it seems very similar to Tim Berners-Lee's Solid. Either way, it shows that this paradigm is gradually picking up momentum as more people recognize the necessity. It's not really blockchains that will bring about the Web 3.0 but rather such more general purpose platforms and frameworks (blockchains are quite narrowly purpose-built and designed with a specific purpose in mind — they don't really make much sense for most use cases and applications and the hype surrounding them had been largely fueled by money and an idea for a promise of large and easy profits).

polypoly.eu

Polypoly is an EU (German) project that has pretty much the same concept as Solid. Haven't yet really looked into that one in any further detail.

read.cash

Read.cash is a blogging/social media platform (similar to this one and the likes of Cent, Minds and such) where you can earn BCH (Bitcoin Cash) for publishing content. Design-wise I find it to be the best one yet. Otherwise haven't yet tried it (just created an account).

wiby.me

Wiby is a search engine expanding a web of pages built as search engines used to be in the earlier pre-Google and Web 2.0 days of the Internet (when you would often find things you didn’t know you wanted to know and there was an element of surprise). Not yet entirely sure, but I think it makes use of the Semantic Web and Linked Data in crawling the results. Where Google tends to rather be geared towards pulling direct answers to more technical issues and has become more of a curation engine rather than a search engine in the last couple of years (and even ditched their "don't be evil" motto from the code of conduct).

This is actually one really important aspect of re-inventing and re-decentralizing the Internet, the search engine(s) — and we will certainly need an alternative to Google. (Not saying that's it as this is rather simple and rudimentary, more like somebody's cool hobbyist side project, but certainly an area that needs more thinking about and trying out alternative models. Especially given how search engines like the widely used privacy-centered DuckDuckGo and others like it are really meta-search engines that also use Google.)

remotestorage.org (remoteStorage protocol)

At remotestorage.io, it's an open protocol for per-user storage on the Web that also very much resembles the personal data servers ("pods") in Solid and similarly allows for building all kinds of apps on the basis of that. The remoteStorage-enabled apps automatically sync all your data across your devices and apps and are completely client-side.

Users and their data are recognized and identified by apps (in knowing where to look for what and your giving them permissions) via an e-mail address or other URI that points to where storage information should be retrieved. WebFinger is used for the purpose - a simple web discovery protocol. For authorization it uses OAuth 2.0 and REST HTTP request methods for data storage and sync (again somewhat like Solid).

5apps offers free storage account registration for remoteStorage at the moment and DuckDuckGo is one of the project's sponsors it seems.

unhosted.org

It includes lists of unhosted and serverless web apps (based on remoteStorage, as well as Scutterbutt, Holochain, Solid, etc.) and resources and information about the underlying technologies that make it possible (focused on breaking away from the siloed world of the Web 2.0 monopoly platforms and the digital feudalism they've established).

keys.pub

Somewhat similar to keybase.io, but focused solely on managing and storing crypto keys, passwords, user identities, logins and accounts. You can also send encrypted messages to others using their public key to address them as recipients. And there's also the option for establishing secure two-way tunnels between two computers (called a "wormhole").

openminded.org

That's an open-source community focused on providing and lowering the barrier to entry to private AI technologies. PyGrid is the platform for that and it uses the PySyft library which enables the private hosting of models and datasets in the cloud — for encrypted, federated prediction and training. The PySyft library is a (Python) library for secure, private machine learning that extends PyTorch, Tensorflow and Keras with capabilities for remote execution, federated learning, differential privacy, homomorphic encryption, and multi-party computation.

Pretty cool and useful in many valuable ways, though it does require at least basic familiarity with NumPy (PyTorch is basically a replacement for NumPy that uses the power of GPUs for faster training) and the other associated Python libraries. It's one way to go about creating access to machine learning and AI as a public service.

Openminded seems to be somewhat related to or associated with fast.ai. 

The PySwift Framework paper is here.

PySyft tutorials, Python notebooks and practical examples available at the Github repository here.

peergos

Peergos is another such peer-to-peer secure file storage protocol, apps platform and social network (with focus on security). It hasn't been yet officially released (expected to come out this year), there's just a single machine demo available at demo.peergos.net. Peergos is based on IPFS (for providing data storage, routing and retrieval) and among their stated goals are to provide a new trust architecture independent of the central SSL CA trust authority, to enable a new form of e-mail, ensure plausible deniability through dual login to an account (similar to Truecrypt), etc.