arXiv positions itself in a place before the journals in the food chain; anyone can upload a paper there, including authors who submit to journals, but all of these papers are "preliminary", as in, "before journal edits". It's questionable if journal edits actually bring any value, but nonetheless, their status is that they're going to be "likely different in some way" than whatever journals publish.
SciHub allows free access to the "final" pieces of work, even if they're equivalent (or even equal) to the "non-final" ones available on arXiv. That's a big mental difference.
also interested in such sites for optics, engineering (or throw whatever at me what you got!)
> By "open access" to this literature, we mean its free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. The only constraint on reproduction and distribution, and the only role for copyright in this domain, should be to give authors control over the integrity of their work and the right to be properly acknowledged and cited.
https://en.wikipedia.org/wiki/Budapest_Open_Access_Initiativ...
I decided to take a look at the biotechnology journal https://scihub.org/ajbms/current-issue/
However, it seems the current issue is July 2017? Is it not updated frequently?
Thank you.
SciHub is the original reason why open-access plans like this one have a chance of working at all. The authors of this paper simply announce that the SciHub approach has won and it's time to stop pretending otherwise and break the status quo of modern science publishing.