I am responsible for publishing the proceedings submissions of the Scandinavian Symposium on Physical Acoustics, a smallish yearly conference with about 50 participants. After the symposium, participants who held a presentation are encouraged but not required to submit articles to the symposium’s proceedings. Typically, these proceedings end up with 5–10 articles, all of decent quality.
My aim is to publish the proceedings through a channel which makes the articles visible and searchable through at least Google Scholar. In 2016 and 2019, when I was previously responsible for publishing the proceedings, I uploaded the proceedings to arXiv.org through a process that I established with arXiv moderators and later described on my blog. This gave us the visibility and searchability that we wanted.
In 2016, this went fairly smoothly, but in 2019 there was an issue. Our symposium accepts a wide range of proceedings articles, including working papers that present a research setup and briefly describe preliminary results. However, arXiv have a stricter policy saying that “arXiv only accepts submissions in the form of an article that would be refereeable by a conventional publication venue”. The arXiv moderators therefore rejected one of our proceedings submissions, as they judged it not to be “in a format appropriate for publication in a conventional journal”. This is of course their prerogative, but it left the uploaded proceedings incomplete. (We ended up uploading the last article to ResearchGate instead.)
My question is therefore whether there are any other channels that we can upload such a proceedings to, which would give us similar searchability and visibility to arXiv, but where we can also be certain that we will be able to upload all of our proceedings submissions. Could ResearchGate, HAL, or another site be an option?