Newslettersby GlyphSources newsletter by Heath Media LLC: latest issues, cadence and price
by Heath Media LLC · Substack · Free and paid · weekly · last issue Sep 10, 2026 · Paused
Covering the AI race.
Thu Sep 101 issue
Fri Aug 281 issue
Fri Aug 212 issues
Tue Aug 181 issue
Fri Aug 141 issue
Mon Aug 101 issue
Sat Aug 81 issue
Thu Aug 61 issue
Wed Aug 51 issue
Fri Jul 311 issue
Thu Jul 301 issue
Wed Jul 291 issue
13 issues on file since Jul 29, 2026; every one is in its own archive ↗.
About this newsletter
Photo
None found, so the logo or initials show. Photos come from Wikimedia Commons or official company pages, never LinkedIn or image search.
Free or paid
Free and paid on Substack. 8% of its latest 12 issues are for paying subscribers (from its public archive, checked weekly).
Issues per week, last 26 weeks
weekly, measured over the last six months (or since the feed's oldest issue)
Issues by month
Writes about
AI and agents (12), Tech business and strategy (1) in the last six months.