This paper aims for a better understanding of the perspectives of contributors to Spanish academic journals regarding open access, open peer review, and altmetrics. Specifically, it explores how age, gender, years of professional experience, and perception and use of social media influence authors' opinions of these developments in scholarly publishing. A sample of 295 contributors to Spanish academic journals participated in a survey about the aforementioned topics. They were found to hold a favourable opinion of open access but were more cautious about open peer review and altmetrics. The responses of younger and female scholars indicated more reluctance to accept open peer review practices. A positive attitude toward social networks did not necessarily translate into enthusiasm for emerging trends in scholarly publishing. Despite this, ResearchGate users were more aware of altmetrics.