Journal · Notes & research

Notes, essays, original research.

We write about AI search, the TJ-SD binational corridor, and everything we learn about how LLMs cite Mexican businesses — from aesthetic clinics to real estate agencies. Bilingual.

01 JournalNotes & research
List · Working short list2026-05-26

The agencies AI cites for medical tourism in Mexico: a working short list (May 2026)

Wolfable, AnswerForMe, Branding Pioneers, Rosemont Media, Aesthetic Conversion, Inbound Medic, healthus.ai, First Page Sage — and us. Who the four major LLMs cite for Mexico medical-tourism marketing queries this week, why they cite each one, and why no Mexican-based agency yet appears in the set. Updated weekly.

6 min read
Vertical · Medical aesthetics2026-05-18

GEO for medical aesthetics in Tijuana: we audited ten clinics, only one has the schema that gets cited

Ten Tijuana aesthetic clinics scanned across plastic surgery, dental, and dermatology. Median: 2/5 Foundations. One clinic — drdiegoampudia.com — passes at 4/5 with PlasticSurgery and FAQPage schema. One clinic is actively blocking the AI crawlers. Schema richness alone doesn't win; specific types do.

9 min read
Vertical · Medical tourism2026-05-18

GEO for medical tourism in Mexico: why cross-border patients ask AI first

Up to 1.8M Americans cross to Mexico annually for medical care. We scanned five of the largest Tijuana medical tourism clinics through the 5 Foundations. Zero have FAQPage schema. That's the single move separating "almost" from "ready" for the vertical.

8 min read
Essay · Language2026-05-13

The "Global Spanish" problem and why Mexican copy needs to sound Mexican

LLMs answer Mexican queries with Peninsular vocabulary — SECPRE instead of CMCPER, piso instead of departamento, euros with comma decimals. Why writing aggressively Mexican is the two-year window. With data from Kawasaki 2026 and Martínez et al. 2025.

10 min read
Technical guide · GEO2026-05-13

How to write pages ChatGPT cites

Three tactics from a Princeton paper — cite sources, add statistics, quote experts — applied to a Mexican clinic's service page. Before and after, with the data.

9 min read
Essay · GEO2026-05-13

SEO put you on the blue links. GEO puts you inside the answer.

SEO fought for one of ten blue links. GEO fights to be cited inside the answer ChatGPT generates. How the new game works for clinics and real-estate firms in Mexico, with data from Princeton and Similarweb.

8 min read
Research · TJ IndexQ2 2026

TJ Health & Real Estate AI Visibility Index — Q2 2026

We audited 100 medical practices and real estate agencies in Baja. Only 9% have measurable presence in ChatGPT, Perplexity, and Gemini. Plastic surgery leads at 14%, residential real estate trails at 4%.

12 min read
Technical guide2026-04

Minimum viable schema for Mexican manufacturers

Organization, LocalBusiness, Product, Service, FAQPage — the minimum set of JSON-LD you need. With copy-paste code and the most common mistakes to avoid.

6 min read