Introduction

Largely thanks to the efforts of  the ASAPbio initiative, in the past five years we have been witnessing a rapid growth of preprint submissions in the life sciences – as seen in the increase in preprint submissions to bioRxiv. Despite this growth, preprints are not yet widely adopted by biologists as a vehicle for rapid, freely accessible dissemination of scientific knowledge. This is in contrast to other disciplines such as physics, mathematics, and computer science, that have successfully and widely integrated preprints to their workflows for over 25 years.
In a recent ASAPbio progress report published on CSE Science Editor, Director Jessica Polka identified four key factors that will help preprint growth within the life sciences: 1) cultural change, 2) preprint-related policy changes within universities, 3) preprint-related policy changes within journals, and 4) new players and infrastructures to support dissemination and adoption of preprints. 
Our Preprint Journal Club Starter Kit project and PREreview were created with these four points in mind. We believe discussing and reviewing preprints at journal clubs will help change the culture within academia by showing researchers the value of incorporating comments from the whole scientific community early on in the publishing pathway. We also believe reviewing preprints at journal clubs will help formalize training for early-career researchers on how to write a peer review. We hope this process will encourage university policy changes geared towards rewarding preprint posting in tenure track evaluations and graduate students' research evaluation. Furthermore, we hope more journals will change their policy to accept preprints (a list of journals' copyright and self-archiving polices can be found on Wikipedia and searched using SHERPA/RoMEO). Finally, with PREreview we wanted to contribute to the creation of new infrastructures and provide a space for collaborative writing and easy sharing of preprint reveiws.
But what do other scientists think about these ideas? Before setting off on our quest we ran a community opinion survey to address the feasibility and level of community support for preprint journal clubs. We launched the survey during the Mozilla Global Sprint (June 1-2, 2017) and closed it on August 31st, 2017. We shared the survey with our local university networks and broadened our reach through social media – using the #preprint and #ASAPbio hashtags. 

Results

Our survey acquired data on the number of scientists that are willing to or are already hosting preprint journal clubs, and scientists’ opinions about preprint journal clubs, preprint commenting, and peer review training for early-career researchers. We closed the survey with 102 respondents, mainly from academia (Fig. 1). Respondents were, for the most part, from the USA (51%), but we collected data from Europe, Asia, and South America as well.