On average, they’re paying just under $80 per year. About 40 or so indie publishers with paid offerings are making what Substack calls “meaningful money.”
Benton, Joshua. "Why Quartz values email newsletters." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 1 Aug. 2013. Web. 26 Apr. 2024.
APA
Benton, J. (2013, Aug. 1). Why Quartz values email newsletters. Nieman Journalism Lab. Retrieved April 26, 2024, from https://www.niemanlab.org/2013/08/why-quartz-values-email-newsletters/
Chicago
Benton, Joshua. "Why Quartz values email newsletters." Nieman Journalism Lab. Last modified August 1, 2013. Accessed April 26, 2024. https://www.niemanlab.org/2013/08/why-quartz-values-email-newsletters/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2013/08/why-quartz-values-email-newsletters/
| title = Why Quartz values email newsletters
| last = Benton
| first = Joshua
| work = [[Nieman Journalism Lab]]
| date = 1 August 2013
| accessdate = 26 April 2024
| ref = {{harvid|Benton|2013}}
}}