Mark Harris Add us as a preferred source on Google
🔄 Data last refreshed 1 day ago
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Make a deal with Mark Harris
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
925
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🎁 Free analysisfor Mark Harris
📊 Post engagement
Recent posts · likes + reposts
Oct 23latest
5
Avg engagement / post
3–7
Typical post (engagement)
0.5%
Engagement vs followers
74/100
Very consistent reach
Oct 2022
On Mastodon since
Half of recent posts land between 3 and 7 likes + reposts (median 4) — a dependable floor a sponsored post can count on.
🔥 Top post: The Guardian just ran an obituary for my father, the photographe · 9 likes + reposts
📊 Activity & format
Posting cadence
0.36 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 11 text · 1 image · 0 video.
Follower / following
2.7×
Follows 347 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
New from me: The OceanGate Files at Wired magazine - tens of thousands of emails, documents and photos that chart the early days of the submersible company. It's a long read but lots of new info here!
https://www.wired.com/story/titan-subm…
New by me for New Scientist: SpaceX aims to let astronauts avoid a radio blackout during re-entry. A Falcon 9 mission this year will have a Starlink terminal on board, testing its ability to communicate at orbital velocities & one day, dur…
New by me at IEEE Spectrum: how tech is increasingly automating the January 6th investigations https://spectrum.ieee.org/capitol-riot-prosecutions-technology
New by me at Anthropocene: Is tackling climate loss and damage as urgent as drawing down carbon? https://www.anthropocenemagazine.org/2023/12/is-tackling-loss-and-damage-as-urgent-as-drawing-down-carbon/
New by me at IEEE Spectrum: Amazon Is Firing Up Its Space Lasers. A look at the growing use of optical interlinks for internet satellite megaconstellations in LEO.
https://spectrum.ieee.org/amazon-kuiper-satellites
I'll be at AGU this Thurs and Fri with my Anthropocene Magazine hat on, if anyone wants to say hi. Also check out our Climate Parables performance on Thursday evening, including a chat with Kim Stanley Robinson and Oliver Morton. Info here…
And here's the first official photo of Pathfinder 1 in the wild
SCOOP! LTA Research, the airship start-up funded by Sergey Brin, begins flight testing TODAY of the world’s largest aircraft Pathfinder 1. TechCrunch has an exclusive interview with LTA CEO. Photo coming soon https://techcrunch.com/2023/11…
New by me for IEEE Spectrum : another retinal implant company goes broke. Are high-tech bionic eyes just too difficult to bring to market?
https://spectrum.ieee.org/retina-implant-pixium-sa-receivership
New by me: LTA Research's huge airship gets FAA certificate to fly. https://spectrum.ieee.org/lta-airship-faa-clearance
Varda Space's prototype space factory looks to be stuck on orbit for at least the rest of the year. New by me for IEEE Spectrum: https://spectrum.ieee.org/space-manufacturing-varda
And here's the first official photo of Pathfinder 1 in the wild
SCOOP! LTA Research, the airship start-up funded by Sergey Brin, begins flight testing TODAY of the world’s largest aircraft Pathfinder 1. TechCrunch has an exclusive interview with LTA CEO. Photo coming soon https://techcrunch.com/2023/11…
New by me for IEEE Spectrum : another retinal implant company goes broke. Are high-tech bionic eyes just too difficult to bring to market?
https://spectrum.ieee.org/retina-implant-pixium-sa-receivership
New by me: LTA Research's huge airship gets FAA certificate to fly. https://spectrum.ieee.org/lta-airship-faa-clearance
Varda Space's prototype space factory looks to be stuck on orbit for at least the rest of the year. New by me for IEEE Spectrum: https://spectrum.ieee.org/space-manufacturing-varda
🐘 Community & instance
Home server
freeradical.zone
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Oct 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 5 views per post.
📤Posts about 0.4× per week.
🕵️ Fake follower check
Estimated43/100
Fair
Credibility score
73%
Mixed
Real audience
Medium
Fake-follower risk
High
Data confidence
- Est. 73% real, active audience · Medium fake-follower risk.
- Low engagement (~0.5% of followers engage each post) — a sign of an inflated or inactive audience.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
💚 Brand affinity
EstimatedBrands Mark Harris's audience is most likely to respond to — from detected sponsorships in this niche.
About
Senior Editor at Anthropocene Magazine. Freelance sci/tech investigations for Wired, MIT Technology Review, IEEE Spectrum, TechCrunch and others. DM for email/Signal!
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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Frequently asked questions
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How many followers does Mark Harris have?
Mark Harris has 925 followers on Mastodon.
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