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Sarah Leary02 February 2021

343: How To Find The Next Big Business Idea with Nextdoor Co-Founder Sarah Leary

5Frameworks
9Insights

Frameworks in this episode

Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Hot Take· 2

Hot Take39:00

Why Community Cannot Be Bolted On After the Product

Leary argues that community must be part of a company's behaviour from the beginning rather than a later promotional feature. Founders should participate as early members, explain the mission, invite users to help shape the product, and visibly act on their feedback so involvement feels genuine.

  • Authenticity is the foundation of a durable community
  • The founder or founding team should participate directly
  • Members should be treated as collaborators rather than distribution channels
  • Ignoring feedback weakens the trust the community depends on
  • Leary credits early Nextdoor members with materially shaping the product

it should be a part of what you're doing from the very beginning

Sarah Leary · 39:30

it has to be part of the dna of the company

Sarah Leary · 41:00
#community#authenticity#product
Hot Take53:30

Disruption Creates Windows for New Companies

Leary argues that major changes in how people live and work create openings for entrepreneurs to build new products. She connects those openings with a larger pool of capable builders and available capital, while noting that funding still depends on the quality of the idea.

  • Changed behaviour can expose needs that older products do not serve
  • Leary says more people had the skills needed to start companies
  • She viewed remote work and lifestyle change as sources of new opportunity
  • Her positive assessment is an entrepreneurial interpretation, not a guarantee of success

disruption happens when disruption happens i think entrepreneurs see that there's an opportunity for something new to be created

Sarah Leary · 53:30
#disruption#opportunity#innovation

Explainer· 1

Explainer43:00

How Declining Institutional Trust Raises Community's Value

Leary describes a broad shift away from trust in large institutions and toward grassroots recommendations. In her view, this makes authentic advocates increasingly valuable across consumer, software, enterprise, infrastructure, and open-source markets, because peers can explain how a product works in context.

  • Leary presents lower institutional trust as a macro trend
  • Peer recommendations can carry more weight than centralized promotion
  • Advocacy cannot be manufactured if users do not believe in the product
  • Community dynamics also appear in enterprise and open-source buying decisions

we are increasingly less trustworthy uh trusting i'm sorry less trusting of large institutions

Sarah Leary · 43:00

you can't convince people to be advocates for your product your brand if they don't actually feel that way

Sarah Leary · 43:30
#trust#word of mouth#community

Story· 4

Story01:30

Why Sarah Leary Kept Moving Toward the Earliest Stage

Leary traces her interest in entrepreneurship to a family filled with small-business owners, including her grandmother. Working on the first launch of Microsoft Office and later joining a startup as its fifteenth employee strengthened her desire to build companies from the ground up.

  • Entrepreneurship felt normal because it was visible throughout her family
  • Microsoft showed her the scale founders could create
  • Joining an early startup still left her wanting to begin at day zero
  • Her first startup later went public and was acquired by eBay

i just wanted to go early stage

Sarah Leary · 03:00
#career#entrepreneurship#startups
Story06:30

Fanbase Failed, but the Investor Backed the Team Again

After engagement, retention, and usage suggested Fanbase was not becoming a major sports community, Leary and her co-founder offered to return the remaining capital. She says their original investor declined, framed returning the money as the easier exit, and gave the reduced team a few months to search for a new direction.

  • The company still had roughly seven million dollars when the founders raised the issue
  • Leary says a couple of million dollars had been spent by then
  • The founders felt responsible for telling investors the original mission no longer looked viable
  • The investor's confidence created both runway and pressure to find a stronger idea

we actually went back to our original investor and offered to give the money back

Sarah Leary · 07:30

i bet on the team

Sarah Leary quoting the investor · 07:30
#failure#investors#pivot
Story08:30

The Everyday Connection Gap That Inspired Nextdoor

The Nextdoor concept grew from Leary's observation that people could connect globally on Facebook and professionally on LinkedIn while barely knowing nearby neighbors. The contrast with how she remembered growing up made the missing local layer feel like an opportunity worth exploring.

  • Existing networks served global and professional relationships
  • Nearby relationships remained comparatively underserved
  • The idea began in the founders' own experience rather than a technology trend
  • Early neighborhood conversations suggested others felt the same gap

we didn't know the people who lived right next door or right down the street from us

Sarah Leary · 08:30
#nextdoor#local#origin story
Story46:30

Why Leary Left Nextdoor's Operating Team for Venture Capital

As Nextdoor approached 400 employees, Leary faced a personal choice about committing to another three or four years of expansion and revenue growth. She moved to the board and joined Unusual Ventures because helping founders during company creation and product-market-fit work felt more energizing than operating the next phase of a larger organization.

  • The decision was about fit with Nextdoor's next stage, not a claim that the company was failing
  • Leary moved to the board rather than severing her connection
  • She wanted to return to early company creation
  • Her Fanbase and Nextdoor experience became practical guidance for other founders

did i want to sign up for the next three to four years for the next phase of the company

Sarah Leary · 47:00

i was excited about sitting down with entrepreneurs in the early stages of their creation process

Sarah Leary · 47:30
#career transition#venture capital#nextdoor

Q&A· 1

Q&A49:00

Nextdoor's Reported Scale and Advertising Model in 2021

Leary says Nextdoor sold feed advertising to local and large businesses but, as a privately held company, did not disclose revenue. She reported roughly 260,000 neighborhoods and tens of millions of users globally, while attributing increased use during the pandemic to demand for local information.

  • The stated revenue model included feed advertising for local and large businesses
  • Leary did not provide revenue figures
  • She reported about 260,000 neighborhoods worldwide
  • She described the user base as tens of millions
  • The scale and growth figures are the guest's contemporaneous claims from 2021

we have the ability for local businesses large businesses to be able to advertise uh in in the feed

Sarah Leary · 49:00

tens of millions of users around the globe

Sarah Leary · 49:30
#nextdoor#business model#scale

Takeaway· 1

Takeaway54:30

Choose Cofounders and Investors for the Full Journey

Leary's closing advice is to evaluate cofounders, team members, and early investors as long-term working partners. Complementary skills matter, but so do enjoyment, resilience through difficult periods, relevant expertise, and the ability to add something beyond capital; she says Nextdoor did not always optimize financing decisions for price and valuation.

  • Startup journeys can last five to ten years
  • Cofounders should combine complementary skills with strong working relationships
  • Early investors become part of the team through both good and difficult periods
  • Domain or stage expertise can be more useful than capital alone
  • Leary says Nextdoor prioritized partner quality over always maximizing valuation

you want to pick people who are complementary to your skill set

Sarah Leary · 55:00

we didn't always optimize for price and valuation

Sarah Leary · 55:30
#cofounders#investors#team