David Portnoy posted a four-minute rant and a flurry of tweets blasting the Robinhood app and hedge funds for rigging markets against small investors.
These independent newsletters aren't necessarily a threat to established publishers, though the dynamic can vary by type of publication and audience.
Publishers fret the planned changes to the company's popular Chrome browser will hurt ad revenue.
Err on the side of caution: Writers and editors keep getting fired for their remarks on social media.
The Australian law would require companies that aggregate news from publishers to negotiate payments for their content.
A cover image can define an era even if the more immediate goal of grabbing attention at the newsstand has been diminished in recent years.
However, the share of time with ad-supported media fell to less than 45%, a low point in data going back almost 20 years. The decline is largely attributable to users streaming more SVODs.
The lawsuit, "Federal Communications Commission v. Prometheus Radio Project," centers on the agency's move in 2017 to relax rules on broadcaster ownership.
First-party data has become more valuable for publishers and advertisers as consumers grow more wary about privacy.
The publisher will launch a software-as-a-service platform called AxiosHQ to help companies with their internal communications.