The newsletter industry publishes a lot of research about itself. We read it all so you don't have to. And then we tell you what it means to your business.
Nobody has a defensible dollar figure for what a B2B subscriber is worth. We checked the platform reports and operator case studies that do exist, sorted out what they prove, and built a calculator so you can run the numbers for your own firm.
Read the piecebeehiiv studied 4,755 business newsletters. The biggest operators on earth have nearly stopped buying subscribers, small lists read more than huge ones, and every issue lands somewhere AI search can't reach. The best news in the report is for the smallest lists.
Read the pieceGrowth Curve is Spacebar's weekly newsletter about how media businesses grew. We read all 27 editions published between April 16 and October 8, 2026, and kept the ten growth lessons that survive contact with a consultancy's economics. Discovery, reader quality and proving people read it before you pay to grow lead the list.
Read the pieceEdelman and LinkedIn asked nearly 2,000 professionals how thought leadership shapes who they buy from. Most of the people who can block a deal read it for more than an hour a week and rarely talk to sales. The report covers thought leadership broadly, not newsletters alone, so we translated it for a firm whose owner is the expert.
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