A company blog from Aerobavovna, a maker of tethered aerostats and high-altitude platforms, covering lighter-than-air funding data, first-order feasibility estimates for protecting infrastructure with aerostats, and developments in Polish and Ukrainian aerostat programmes. Readers get sourced market figures, engineering back-of-envelope calculations and news on military aerostat deployments, with some product promotion.

James Wise, a venture capitalist at Balderton, writes a newsletter on generative AI, its economic effects, and his investment work, including his Sovereign AI fund and deals like Quantum Systems. Readers get a mix of macro commentary on AI-driven cost changes and firsthand updates from inside venture investing.

Security Land is a news-style digest covering cybersecurity and defence technology stories, such as Proton Mail's post-quantum encryption rollout, a Westcon-Comstor conference announcement, and a UK-Belgium electronic warfare partnership. Readers get short write-ups that mostly restate press releases and announcements, with little independent analysis.