Explore · The library
Every resource founders actually use, in one library.
The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.
What founders use most, ranked by how many answers lean on it.
- Survey data on how teams actually use AI in synthesis and the time it saves. lyssna.com Article · How Founders Use AI Research Synthesis Report 2025: AI, Methods & Time Investment Lyssna
- An honest map of what AI moderation matches humans on and what it cannot do. getperspective.ai Article · How Founders Use AI AI-Moderated Interviews: How They Work, When to Use Them, and What They Replace Perspective AI
- The research frontier on simulating customers, and why to stay skeptical of it. arxiv.org Article · How Founders Use AI Synthetic Founders: AI-Generated Social Simulations for Startup Validation Research arXiv (academic)
- A documented 6-weeks-to-8-days discovery compression, step by step. aakashgupta.medium.com Article · How Founders Use AI AI Just Made Product Discovery 10x Faster (Here's the Exact Process) Aakash Gupta
- Includes conversational data querying and research patterns from the best PMs. lennysnewsletter.com Article · How Founders Use AI How top PMs increase their leverage with AI Lenny's Newsletter
- Torres's actual day-to-day setup for automating research legwork. lennysnewsletter.com Article · How Founders Use AI How I AI: Teresa Torres uses Claude Code as her research and writing system Lenny's Newsletter (How I AI)
- a16z on the shift from ranking to being referenced in AI answers, and what that means for content and measurement. a16z.com Article · How Founders Use AI How Generative Engine Optimization (GEO) rewrites the rules of search a16z
- Google's own positioning of NotebookLM as a grounded research partner. blog.google Article · How Founders Use AI Do your best research with NotebookLM Google
- The update that lets NotebookLM gather web sources for you, not just read uploads. blog.google Article · How Founders Use AI NotebookLM adds Deep Research and support for more source types Google
- The best mainstream end-to-end guide to what it does and how to start. fastcompany.com Guide · How Founders Use AI The complete guide to NotebookLM Fast Company
- A productivity YouTuber's written playbook with real workplace use cases. jeffsu.org Guide · How Founders Use AI NotebookLM: A Comprehensive Guide Jeff Su
- Cuts through a year of feature launches to what is actually useful. jeffsu.org Article · How Founders Use AI NotebookLM in 2026: What Changed and What Matters Jeff Su
- The launch thread from NotebookLM's editorial director, with a live example. x.com Thread · How Founders Use AI Rolling out audio overviews at NotebookLM Steven Johnson
- A rigorous independent tester's verdict on audio overviews. simonwillison.net Article · How Founders Use AI NotebookLM's automatically generated podcasts are surprisingly effective Simon Willison
- Advanced workflows chaining NotebookLM with deep research outputs. medium.com Article · How Founders Use AI How To Use NotebookLM Better Than 99% Of People (Deep Research Workflow Guide) Daniel Ferrera
- Understanding how the podcast voice is engineered helps you steer it. nicolehennig.com Article · How Founders Use AI NotebookLM: reverse engineering the system prompt for audio overviews Nicole Hennig
- Keeps you current: structured data tables from your sources is a big founder unlock. 9to5google.com Article · How Founders Use AI NotebookLM now uses Gemini 3, adds new Data Tables output 9to5Google
- Practical notebook-organization patterns that keep answers sharp. medium.com Guide · How Founders Use AI NotebookLM 2025: The Only Practical Guide You Need Write A Catalyst (Medium)
- The launch of the research-first agentic browser. perplexity.ai Article · How Founders Use AI Introducing Comet: Browse at the speed of thought Perplexity
- A detailed early hands-on with real tasks, not marketing claims. testingcatalog.com Article · How Founders Use AI Exclusive review: Comet Agentic browser by Perplexity TestingCatalog
- Explains the mechanics and the security surface of both browsers. humansecurity.com Article · How Founders Use AI ChatGPT Atlas vs Perplexity Comet: How Agentic Browsers Work HUMAN Security
- A sober enterprise take on what agentic browsing changes. ibm.com Article · How Founders Use AI Comet: Perplexity's AI browser gets personal IBM Think
- A later review once the novelty wore off; what stuck and what did not. secondtalent.com Article · How Founders Use AI Perplexity Comet Review: When the Browser Starts to Think Second Talent
- Research agents now output decks, dashboards and spreadsheets, not just reports. perplexity.ai Article · How Founders Use AI Deep Research, now in Computer Perplexity
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →