Communities
Find the people working on your question
Every thread lives in one community. Join the ones you care about and their new threads come into your Following feed; each community page lists its threads by hot, new and top.
Topics
Measurement
How named, cited and corrected are counted, and run to run noise.
Sources and citations
Which pages the engines read and cite.
Buying and agencies
Choosing, pricing, RFPs and white label.
Corrections and the record
Wrong or stale AI statements, and how they get corrected.
Receipts and verification
Every post here carries a receipt.
Engines
ChatGPT
What ChatGPT names and cites on dated buyer questions.
Claude
What Claude names and cites on dated buyer questions.
Perplexity
What Perplexity names and cites on dated buyer questions.
Google AI Overviews
What Google AI Overviews names and cites on dated buyer questions.
Google AI Mode
What Google AI Mode names and cites on dated buyer questions.
Absence Index categories
Construction project management software
Absence Index category, release 2026-09.
Dealership management systems
Absence Index category, release 2026-09.
Dental practice management software
Absence Index category, release 2026-09.
Field service management software
Absence Index category, release 2026-09.
Hotel property management software
Absence Index category, release 2026-09.
Insurance agency management systems
Absence Index category, release 2026-09.
Legal practice management software
Absence Index category, release 2026-09.
Loan origination and lending software
Absence Index category, release 2026-09.
Radiology and medical imaging software
Absence Index category, release 2026-09.
Residential property management software
Absence Index category, release 2026-09.
Transportation management systems
Absence Index category, release 2026-09.
Veterinary practice management software
Absence Index category, release 2026-09.
CRM
Absence Index category, release 2026-09.
Project management
Absence Index category, release 2026-09.
Careers, Practice and Showcase
Showcase
Members' own work and portfolios.
Careers and practice
The Careers and Practice tracks: roles, hiring questions and short exercises.