— Reference Department · Career Studies Wing —

The Card Catalog of Career Networking Resources

SUBJECT: PROFESSIONAL NETWORKS · ACCESSION 2026.04
DRAWER 14 · CAR – CAR
331.7
L755
CAREER · NET

LinkedIn

a general-purpose professional network
Operated by: Microsoft Corporation, since 2016 (acquisition).

Multi-feature platform combining profiles, connections, job listings, recruiter outreach, learning courses, and content publishing under one roof. Established 2003. Free base tier; Premium subscriptions begin at $29.99/month.

Reaches an estimated 1B+ users across 200+ countries — the broadest distribution of the four titles cataloged here.

Tracings · Subjects 1. Networking, Professional. 2. Job postings — Online. 3. Career development.
See also: Indeed; Glassdoor; Wellfound; Meetup.
REFERENCE CAT. 2026
331.1
I38g
JOBS · REV

Indeed & Glassdoor

a paired set: search engine + employer reviews
Operated by: Recruit Holdings (parent of both titles).

Indeed (est. 2004) functions as a job-search engine; Glassdoor (est. 2007) provides employee reviews and disclosed salary data. Together they receive approximately 350M visits per month across 60+ countries.

Free for job seekers; employers pay for sponsored listings and other premium features. No social or networking layer included.

Tracings · Subjects 1. Job hunting. 2. Salaries — disclosed. 3. Employer reviews.
See also: LinkedIn; Wellfound; Meetup.
REFERENCE CAT. 2026
331.7
W454
STARTUP · HIR

Wellfound

formerly: AngelList Talent — a startup-only network
Operated by: AngelList. Established 2010.

A specialty title for the startup ecosystem. Salary and equity ranges are disclosed on listings as standard practice; founders typically initiate first contact with candidates rather than recruiters.

Approximately 8M+ candidates and 150K startups participate. Free for candidates; employer-side fees apply.

Tracings · Subjects 1. Startups — Recruitment. 2. Equity compensation. 3. Founders, contact with.
See also: LinkedIn; Indeed.
SPECIAL COLL. CAT. 2026
302.3
M566
COM · 1:1

Meetup & Lunchclub

a paired set: in-person community + AI-matched 1:1
Operated by: Bending Spoons (Meetup); Lunchclub independently.

Meetup (est. 2002) gathers groups of common interest; Lunchclub (est. 2017) algorithmically matches individuals for 1:1 conversation. Combined, they reach 52M+ members across 190+ countries with 2M+ events per year.

Free to attend most events; organizing on Meetup costs from approximately $20/month. Not designed for direct hiring.

Tracings · Subjects 1. Communities, professional. 2. Events, in-person. 3. Networking, 1:1.
See also: LinkedIn; Wellfound.
REFERENCE CAT. 2026
Reference Use
2026 Edition
Jan 2026 Apr 2026 Jul 2026 Oct 2026
Verify · Refresh
each quarter

Reference IndexSide-by-side reading at a glance

TitleSubject HeadingEstablishedOperated byPopulationReachCost (Patron)
LinkedInProfessional Networks — General2003Microsoft1B+ users200+ countriesFree + Premium $29.99/mo+
Indeed + GlassdoorJobs — Direct Search · Reviews2004 / 2007Recruit Holdings~350M visitors/mo60+ countriesFree
WellfoundStartups — Hiring & Equity2010AngelList8M+ · 150K startupsStartup ecosystemsFree
Meetup + LunchclubCommunity — Events & 1:12002 / 2017Bending Spoons (Meetup)52M+ members190+ countriesFree attend · ~$20/mo organize