📄 Article
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Free
Intermediate
Why we picked it
A UX-research leader (ex-Uber Eats, BetterUp) gives founders a concrete three-step discovery process, including how to recruit and take notes. First Round Review is a top-tier operator source.
From
First Round Review
by First Round Review (Jeanette Mellinger)
~20 min read
- Start with a research plan that narrows who you talk to and what you want to learn
- Record every interview and use a note-taker to stay present
- You understand the problem when you can predict ~75% of what a customer will say
- Keep iterating on both the customer profile and the problem you're solving
Open
review.firstround.com →
📖 Book
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Paid
Advanced
Why we picked it
The foundational text of customer development, 'get out of the building' started here and became the backbone of the Lean Startup. Steve Blank's own site is the primary source.
From
steveblank.com
by Steve Blank
~370 pages
- The biggest risk isn't building wrong tech, it's building something nobody wants
- Customer discovery: test your hypotheses with real customers before scaling
- Separate customer development from product development as parallel processes
- Search for a repeatable business model before you try to execute one
Open
steveblank.com →
📖 Book
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Paid
Beginner
Why we picked it
The single best thing ever written on customer conversations. It teaches you to ask about the customer's life and past behaviour, not your idea, so you can't be lied to. If a founder reads one thing before talking to a single customer, it's this.
From
momtestbook.com
by Rob Fitzpatrick
~130 pages
- Talk about their life, not your idea.
- Ask about specifics in the past, not opinions about the future.
- 'That's so cool, I'd totally buy it' is a compliment, not data, dig for commitment and evidence.
Open
momtestbook.com →
📖 Book
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Paid
Intermediate
Why we picked it
The standard modern playbook for keeping discovery continuous so roadmap decisions stay grounded in real customer input, not one-off research. Exactly what founders need to stay close to users while shipping.
From
Product Talk
by Teresa Torres
~240 pages
- Start from a clear desired outcome.
- Interview customers weekly to surface opportunities.
- Use an opportunity solution tree to visualize and align your decisions.
Open
producttalk.org →
📄 Article
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Free
Intermediate
Why we picked it
To say no to the right requests you need feedback you can trust, and this shows how to get it by watching customers rather than just taking their asks. It reinforces that observing the struggle tells you more than the feature name they hand you. Practical field technique for separating a stated want from a real need.
From
First Round Review
by Michael Sippey
12 min read
- Watch what customers do, not only what they ask for
- Get close to the actual struggle to find the real problem
- Stated requests are a starting point for questions, not a spec
Open
review.firstround.com →
📄 Article
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Free
Beginner
Why we picked it
A step-by-step guide to running discovery when you have almost no data, aimed squarely at first-time founders. It is practical on finding people to talk to and asking in a way that surfaces truth rather than encouragement. A solid starting point before your first batch of interviews.
From
First Round Review
by Jeanette Mellinger
15 min read
- Start discovery before you have a product.
- Recruit the right people to talk to.
- Ask so customers can safely tell you no.
Open
review.firstround.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
This is the most direct answer to the second half of your question: where do you actually find these people. The piece walks through real channels (LinkedIn, Craigslist, niche communities, paid panels like User Interviews) and the tradeoffs of each when you have zero customers yet. It also stresses defining who you want to talk to first, and staying open as that picture shifts.
From
Product Talk
by Melissa Suzuno
15 min read
- Define your target interviewee before recruiting, then expect the profile to evolve
- LinkedIn and community posts are free but reward clear problem framing over selling
- Paid research panels save time when you need a specific job title or industry
Open
producttalk.org →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
This is the piece written for exactly your situation: no audience, no network, no obvious way to reach the people you need. Cohen lays out concrete channels to find strangers who fit your customer, from communities to cold outreach, when you are starting from zero. It removes the most common excuse, that you cannot find anyone to talk to.
From
A Smart Bear (Jason Cohen)
by Jason Cohen
- You can find interviewees even with no audience or list
- Go where your target users already gather online
- A handful of the right conversations beats a big launch
Open
longform.asmartbear.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
This is a straightforward, tactical rundown of where to source interviewees when your customer base is zero: relevant subreddits and Facebook groups, LinkedIn search by job title, and paid platforms as a last resort. It also covers how to word the outreach message itself, which is often the part founders get stuck on. Good to pair with the community-search essays above since it adds the actual message templates.
From
Grow and Convert
by Thomas Carney
~12 min read
- Find the communities your target job title or role already uses
- A short, specific ask gets more replies than a vague one
- Offer to work around their schedule, not yours
Open
growandconvert.com →
🧵 Thread
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Free
Beginner
Why we picked it
This is founders trading real tactics on the exact wall you will hit: getting strangers to say yes to a call. You get honest, unpolished answers about which cold messages worked, which communities responded, and how people framed the ask. Useful precisely because it is not theory, it is what worked for people at your stage.
From
Indie Hackers
10 min read
- Name the problem clearly and people who feel it will often talk to you
- Go to the communities where your users already gather, do not cold-blast
- Make the ask small and specific, not a vague request for their time
Open
indiehackers.com →
🧵 Thread
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Free
Beginner
Why we picked it
Once you've found someone willing to talk, this thread collects the actual questions other founders use, crowdsourced from people running interviews right now. It's a fast way to build your own question list without starting from a blank page. Use it alongside The Mom Test's rules so the questions you borrow stay honest ones.
From
Indie Hackers
~5 min read
- Ask about the last time they dealt with the problem, not hypotheticals
- Follow up on any strong reaction instead of moving to the next question
- End by asking who else they know with the same problem
Open
indiehackers.com →
🧵 Thread
✓ Link checked
Free
Beginner
Why we picked it
A specific, first-person account of finding an audience on Reddit from nothing, including which subreddits worked and how the founder avoided getting banned for promotion. It's a concrete example of the "go where the customer already hangs out" advice actually playing out, rather than generic guidance about it. Useful if your target customer is more active on Reddit than LinkedIn.
From
Indie Hackers
~8 min read
- Contribute genuinely useful answers before ever mentioning your product
- Niche subreddits convert better than large general ones
- The same posts that bring users can bring interview volunteers
Open
indiehackers.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
The idea that started the lean movement, from the person who coined it. No business plan survives first contact with customers, so stop defending assumptions at your desk and go test them on real people. Short, blunt, and foundational.
From
steveblank.com
by Steve Blank
~8 min read
- Your idea is a set of guesses until customers test it.
- Facts live outside the building, not in your plan.
- Expect to be wrong, and plan to learn from it.
Open
steveblank.com →
📄 Article
✓ Link checked
Freemium
Intermediate
Why we picked it
A data-backed teardown of how companies like Figma, Gusto, and Vanta actually sourced their earliest customers. Replaces guesswork with real patterns.
From
Lenny's Newsletter
by Lenny Rachitsky
~15 min read
- Only three sourcing strategies power nearly all very-early B2B growth.
- Tap your personal network first (Gusto's first 10 were friends/YC batchmates).
- Reach influential users via direct outreach (Figma cold-emailed top designers).
- Start with the highest-trust channels and work outward.
Open
lennysnewsletter.com →
📄 Article
✓ Link checked
Free
Intermediate
Why we picked it
A focused guide on the recruiting outreach itself, with a message template you can adapt. It covers who to ask, how to word the request so it does not read as a sales pitch, and how to raise your reply rate. Handy when you know the theory but your actual outreach is getting ignored.
From
Wynter
by Hannah Shamji
12 min read
- Tell people why you picked them and that you are not selling anything
- Keep the invitation short, specific, and easy to say yes to
- A reusable outreach template saves you rewriting the same ask repeatedly
Open
wynter.com →
📄 Article
✓ Link checked
Free
Beginner
Why we picked it
When you want your old network to open doors rather than just buy, this covers how to ask in a way that respects their time and reputation. It shows how to make the ask easy, give a forwardable blurb, and offer a graceful out so no one feels used. Practical for turning one warm relationship into several honest conversations.
From
Kristina Hu (Hu Knows)
by Kristina Hu
~8 min read
- Write the two line intro blurb so it is trivial for them to forward
- Always give an easy no so the ask never feels like pressure
- Offer to reciprocate, giving intros first builds the goodwill you draw on
Open
kristina.substack.com →
Why we picked it
A short, practical field guide to customer discovery: who to talk to, how to find them, and how many. Pairs perfectly with The Mom Test, Fitzpatrick teaches the questions, Constable teaches the logistics.
From
talkingtohumans.com
by Giff Constable
~80 pages (free PDF available)
- Decide who you need to learn from before you start.
- Recruiting interviewees is a skill, scripts and channels included.
- Get out of the building; patterns emerge faster than you expect.
Open
talkingtohumans.com →
Why we picked it
The permission slip to recruit users by hand, do things manually, and deliver 'insanely great' experiences to your first few customers. The cheapest, most honest way to validate demand is to go get it one person at a time.
From
paulgraham.com
by Paul Graham
~15 min read
- Recruit your first users manually, don't wait for them to come.
- A tiny group of users who love you beats a big group who like you.
- Manual, unscalable effort early is a feature, not a failure.
Open
paulgraham.com →
Why we picked it
This is the most exhaustive single list we found of concrete channels for sourcing interviewees, from personal network to forums to cold LinkedIn to industry events. It's useful as a checklist to run through when your first two or three ideas dry up. Treat it as a menu to pick two or three from, not a to-do list to exhaust all at once.
From
mfishbein.com
by Mike Fishbein
~15 min read
- Exhaust your personal network before any paid or cold channel
- Industry-specific forums beat generic startup communities for finding a real persona
- Attending one relevant meetup can outproduce weeks of cold messaging
Open
mfishbein.com →
📄 Article
India
Free
Beginner
Why we picked it
India does not have one launch button, so this is a useful starting point precisely because it shows ten real companies (Meesho, ShareChat, Dunzo, Redbus and more) reaching their first buyers through whatever channel actually sat where their users already were. Notice how few of them used a launch platform at all: WhatsApp groups, in-person workshops, travel agents, campus coupons, brand tie-ups. Read it as a menu of distribution moves to copy, not a formula.
From
Medium
by Harkirat Singh
~10 min read
- Your first buyers come from the channel they already live in (WhatsApp groups, campuses, existing communities), not from a launch leaderboard.
- Distribution in India is often physical and relationship-led (workshops, agents, partnerships), so plan for feet-on-ground reach, not just online posts.
- Ten different companies used ten different first channels, which is the real lesson: pick the one channel that maps to your specific buyer and go deep.
Open
medium.com →