Rusty Foster, editor of Today in Tabs, in an interview with Digiday:

Was 2014 the year of the newsletter?

The newsletter has been there all along! I wanted it to be like, “Oh, it’s a revival!” and in a certain small subcommunity, it is. Journalists are starting to use newsletters, and people who haven’t been paying attention to them have been paying attention to them in a way that they weren’t. But the newsletter has always been there. In terms of commerce, newsletters have always been a big thing.