vol. iii notebook of A.J.
A Naturalist's Notebook

A Field Guide to the

Professional
Networks

— Observed in the wild, 2026 —

Field observations · Habitat notes · Comparative remarks
Compiled by hand · March, anno 2026
— page i —

Index of Specimens

— with notes on where each was first sighted —

— page 04 —
scale 1:1

Plate I — adult specimen

Population~1.1 billion
Range200+ countries
First observed2003 · USA
CustodianMicrosoft Corp.
Status (2026)Dominant

LinkedIn

Reticulum professionalis maximus

— "the great professional web" —

Habitat

Found wherever salaried work occurs. Particularly dense in technology, finance, consulting and recruitment habitats. Thrives in corporate ecosystems and is rarely absent from any white-collar environment.

Behaviour

A generalist. Builds large nests of profile, feed, jobs, learning and messaging features. Increasingly territorial — favouring members who post and engage daily. AI-assisted plumage suggestions added in recent seasons.

Notable traits

Largest network Recruiter access Content feed Learning library Noisy in 2026

Cost to observer

Free to view and maintain. Premium plumage from $39.99 / month. Recruiter-grade access considerably higher.

— page 06 —
listing card

Plate II — typical posting

Population~350M monthly
Range60+ countries
First observed2004 · USA
CustodianRecruit Holdings
Status (2026)Common

Indeed & Glassdoor

Inquisitor laboris vulgaris

— "the common job-seeker" —

Habitat

Job boards and salary repositories. Preferred by candidates in active migration; less commonly seen during settled employment seasons. Glassdoor co-habits the same nest, contributing employer reviews and pay reports.

Behaviour

Single-minded. Moves quickly through listings, applies in volume, returns when migration is complete. Lacks display feathers — no profile, no public posts, little personal identity layer.

Notable traits

Largest aggregator Salary intel Employer reviews Quick apply No networking layer

Cost to observer

Free for candidates. Sponsored listings appear in feeds; the user does not pay.

— page 08 —
early specimen

Plate III — sapling form

Population~10 million
RangeGlobal, tech corridors
First observed2010 (rebranded 2022)
CustodianAngelList
Status (2026)Niche

Wellfound

Pullus venturae arboris

— "the young venture sapling" —

Habitat

Early-stage technology gardens. Concentrated where seed and Series A funding flows. Rare in legacy industries, government, and mature enterprise habitats.

Behaviour

Unusually transparent. Each listing displays salary band and equity range — a trait few related species exhibit. Encourages direct contact with founder specimens, bypassing recruiter intermediaries.

Notable traits

Salary & equity shown Founder DM Remote filter Investor adjacency Startup roles only

Cost to observer

Free for candidates.

— page 10 —
cluster behaviour

Plate IV — gathering

Population55M+ members
Range190+ countries
First observed2002 / 2017
CustodianBending Spoons / indep.
Status (2026)Steady

Meetup & Lunchclub

Conventio in carne

— "the gathering in the flesh" —

Habitat

Coffee shops, co-working spaces, community halls and the occasional rooftop. Migrates seasonally toward conferences. Lunchclub variant prefers one-to-one introductions, often via curated video pairing.

Behaviour

Social, slow-building. Forms durable bonds at fewer encounters than digital relatives. Does not maintain a public plumage — relationships are the artefact, not the profile.

Notable traits

In-person events Local groups AI 1:1 matching Communities of practice No jobs · no profile

Cost to observer

Free to attend. Organisers pay hosting fees from $20 / month.

— page 12 —

Comparative Plate

— a side-by-side reading of the four —

Trait observed LinkedIn Indeed & GD Wellfound Meetup & LC
Public profileextensiveabsentstartup-shapedabsent
Job listingsbroadbroadeststartup onlynone
Salary visibilitypartialvia Glassdooron every listingn / a
Editorial / feedactivenoneminimalnone
Real meetingsrarenonenonecore
AI matching (2026)profile & jobsjobs onlylimitedLunchclub pairings
Cost to userfree / paidfreefreefree to attend
— page 14 —

A Naturalist's Note

No specimen above is universally superior. Each is adapted to a particular habitat and rewards observers who use the right one for the right purpose. The careful naturalist will keep more than one in their notebook — and remember that the most valuable observations, in the end, are usually made in the company of others.

— A.J., March 2026

Drawings & observations by hand · figures from publicly available data, 2025–2026
For informational purposes · trademarks belong to their respective owners