What Works for Startups Like Yours?

NotebookLM is an AI-powered tool incubated within Google Labs that lets users upload documents, PDFs, articles, and other content to generate interactive summaries, study guides, and notably, AI-hosted podcast episodes called 'Deep Dives.' Launched about a year before this interview, the product went viral on social media with its surprisingly engaging audio overviews, attracting educators, students, and professionals. Built by a tiny team (3 engineers, 1 PM, 1 designer initially) operating like a startup within Google, the product has achieved strong retention metrics, 60,000 Discord members, and has caught the attention of enterprise companies interested in using it at scale.

DeSo is a blockchain infrastructure built from 2019-2021 that powers decentralized social networks. BitClap was the first prototype app launched in March 2021 with a viral growth mechanism of pre-populated user profiles and creator coins, achieving $80M in invested capital across the network despite only ~10,000-50,000 daily active users. The project faced criticism for anonymity and lack of withdrawals initially, but shifted to transparency by revealing founder Nader Al-Naji and establishing the DeSo Foundation, with 100+ apps now built on the blockchain and creator monetization through NFTs and social tokens.

First customers: Pre-launch seeding of high-profile profiles (Naval, Chamath, Kim Kardashian) with initial coin allocations to attract early users

Rebase is an immigration-as-a-service platform that helps remote workers and digital nomads establish residency in Portugal. Founded by Peter Levels, it went viral on Twitter when he shared a casual photo of building the landing page, generating thousands of sign-ups. The platform now serves approximately 9% of all people moving to Portugal annually, processing around 400-500 sign-ups per month with $30-50k MRR.

First customers: Twitter viral tweet - Peter posted a photo of himself building the landing page with tweet 'POV building an immigration as a service startup' which went viral

Hoppin is a virtual event platform founded by Johnny Bafferat that achieved unicorn status (over $1 billion valuation) in approximately 10-12 months. Launched in February 2020 just as COVID-19 forced events online, the company scaled from 6 people to nearly 300 employees in 9 months by leveraging remote hiring, employee referrals, and a viral product with a 3-5% conversion rate from event attendees to event organizers. The company raised $180 million total and was valued at $32 million in January 2020.

First customers: Waitlist - companies contacted them requesting to move events online during COVID-19 in February 2020

SwagUp is a branded swag creation and distribution platform that Michael Martocci bootstrapped from his mom's house to over $500k/month revenue in under 4 years. With 2,500+ clients and a team of 150+, the company leveraged an inherent viral loop where recipients of swag inquire about the source, driving inbound leads. The business was built with a scrappy initial tech stack (Wix, Typeform, Trello) and scaled through obsessive focus on customer experience and viral growth rather than traditional marketing channels.

First customers: Google Ads - early testing that led to validation and initial customers like Soylent

VidHug is a one-time payment B2C platform that lets users create and share group video compilations for special occasions. After years of slow growth as a side project ($600-$1,000/month from 2018-2020), the COVID-19 pandemic triggered exponential viral growth as people couldn't celebrate in person. Revenue went from $1,000/month in February 2020 to six figures in April 2020, with daily active users growing from 250 to 80,000. The company was acquired by Punchbowl Networks in 2021 for an undisclosed amount.

First customers: Manual service offering to family and friends, validating demand before building automated solution

GeoGuessr is a game where players guess random locations based on Google Street View imagery. Launched in 2013 by a Swedish software engineer as a side project, it grew slowly until the pandemic hit in 2020, when a paywall was introduced after Google increased API costs 14x. Revenue exploded from $467k in 2019 to $21M in 2023 with $11M EBITDA, driven by viral TikTok and YouTube creators, and now has 50M registered users and 50 employees.

First customers: Reddit post in web development subreddit where the founder shared the application and asked for feedback

iSideWith is a political information platform that uses an engaging quiz format to match voters with political candidates and issues. Founded by Taylor Peck and an engineer co-founder, the platform went viral on Facebook, reaching over 25 million quiz takers in four years through organic sharing, with 1.5 million new completed quizzes per month. While currently generating modest revenue (~$10k/month from Google AdSense), Taylor is building toward monetization through sponsored candidate communication tools and email-based campaign offerings.

First customers: Facebook organic sharing - they posted their initial 10-question quiz on Facebook and it spread virally within six months to over six million people

Dollar Shave Club started when Michael Dubin, a marketing professional with improv comedy training, met Mark Levine who had razors to sell. Dubin created a viral launch video that became iconic, attracting investors and customers. Five years after launching, the company sold to Unilever for $1 billion in cash, becoming one of the most well-known early DTC brands.

First customers: Viral launch video

Dropbox, founded by Drew Houston in 2007, experienced explosive viral growth in its first era (2007-2014), doubling and 10xing user counts annually through innovative referral programs and demo videos that leveraged early social media. However, the company entered a difficult second era around 2015 when major incumbents (Apple, Microsoft, Google) launched competing products, particularly Google Photos' free unlimited storage offering, which devastated Dropbox's photo-sharing business. Houston made the strategic decision to kill Carousel and Mailbox, going all-in on productivity, which initially backfired with negative press and internal turmoil before the company eventually stabilized.

First customers: Hacker News viral demo video in 2007, which generated a large beta waiting list