I made
a small comparison table between Slimcoin Web2Web and other "decentralized web" services.
There may be errors, so please review.
Most "competing" services are based on similar technologies - IPFS being the base of several projects, as it offers some key advantages like versioning, but as it is still in alpha state and not supported by mainstream browsers, it has usability limitations. Slimweb can support it later, too.
Some of the most hyped services are pretty centralized. Above all, Substratum seems to use a single, "official" DNS gateway. Shift at least gives the option to use the "official" gateway (Jenga) or not, but publishers not using it have disadvantages. Tron, until now, seems to be a simple IPFS clone and far away from complete implementation (they're starting their blockchain at the end of June, but for now it seems a standard cryprocurrency still without "decentralized web" features).
MaidSafe seems to be, by far, the most ambitious project - but it's also complex and still not very easy to use as it's an alpha.
So I think "Slimweb" can fill an interesting niche ... more so if we implement social networking using Solid standards.