Quoting the IEXEC part of the article :
(Full version here)
iEx.ec: Blockchain-based distributed cloud computing
When they held their ICO in April of 2017, iEx.ec was the world’s fifth largest, raising over $12 million and reaching their contribution cap of 10,000 BTC (bitcoin) in less than three hours.
The concept: Using Ethereum’s smart contracts, iEx.ec will provide on-demand high-performance computing (HPC) services via a distributed cloud infrastructure. Users can rent computing resources (CPU, storage, GPU, etc.) and data-sets and it will cost a fraction of what it normally would to run on a traditional supercomputer. The iEx.ec team is also developing a new Proof-of-Contribution protocol for off-chain consensus (external resources will be certified directly on blockchain).
Who it’s for: iEx.ec aims to help DApp providers, big data, and server providers—those that need a lot of computing power.
IEx.ec’s unique selling proposition (USP): You may have heard of Golem and you may be wondering how iEx.ec’s services differ. Don’t they both offer cloud computing services? As described in iEx.ec’s whitepaper, “Golem aims at first assembling a virtual ‘supercomputer’ to attract regular HPC users to their platform, while iEx.ec first focuses on supporting DApps to build a distributed Cloud that will eventually be competitive enough to attract Cloud and HPC users.” Similar services and visions, but different approaches and initial markets. They could be competing in the future. And while, iEx.ec is a new concept, it was founded by a team with a background in Desktop Grid Computing.
Who’s behind it? Founders Gilles Fedak and Haiwu He are active contributors to the blockchain community. Team members behind iEx.ec have been working in Desktop Grid Computing for the INRIA and CNRS since 2000, and their research has contributed to some of the core technologies used in scientific computing around the world, including the Large Hadron Collider. They bring considerable background experience to this project and do a good job of establishing that credibility in their communications.
What they did pre-ICO: iEx.ec has been blogging on their site since early 2016, and have also been active on Github, Slack, and Reddit since late 2016, around when they published their whitepaper (current one on their website is version 2.0) and corresponding press release. Their whitepaper clearly outlines their purpose, differentiating factors, the team, and their product. While the visuals included are basic, they do the job. They also show a clear implementation roadmap.
Prior to the ICO, team members were communicating in forums and on social media, publishing responses to frequently asked questions, signing up newsletter subscribers, and they published a launch video.
iEx.ec started up a blog on Medium the day of their ICO launch, providing some technical information for early investors.
What they did post-ICO: The day after their ICO launched, iEx.ec posted a blog on next steps. They described how funds and tokens would be used, as well as their transparency policy.
They’ve remained active online, and publish regular development updates. They updated their whitepaper, garnered some media attention, presented at big events like the Blockchain Expo Europe, and updated their website.