Y Combinator cofounder Paul Graham keeps a public archive of his insightful essays

Y Combinator was founded in 2005 to bridge gaps between founders and investors

In one of Paul Graham’s essays on his website, he took the time to explain how and why he and his cofounders (including his girlfriend at the time, and now wife, Jessica Livingston), came up with the idea of and eventually created Y Combinator.

Read Paul Graham’s initial post announcing YC’s first batch

In March 2005, Y Combinator cofounder Paul Graham announced the program that would become Y Combinator on his website.

Y Combinator Cofounder Jessica Livingston once interviewed her husband and cofounder, Paul Graham

Two of Y Combinator’s cofounders, Jessica Livingston and Paul Graham, were in a romantic relationship before they started the accelerator. They later married, and much later, Livingston started a podcast. In an episode of her podcast, Livingston and her cohost interview Graham about the beginning of YC and more.

YC was partly inspired by an investor named Julian Weber

Y Combinator Cofounder Paul Graham’s former professor’s husband Julian Weber provided $10K in seed funding to Graham’s previous startup, Viaweb in its early days. In exchange, Weber received 10% of the company. Weber’s involvement inspired Graham to start a program where investors were more involved with the companies they contributed seed funding to.

Y Combinator tends to outperform many other Silicon Valley startup accelerators

In a podcast episode, Garry Tan—CEO of startup accelerator Y Combinator—speaks about how YC has a better track record than the rest of Silicon Valley at placing bets on startups. Learn how Tan earned his first million dollars, as well as lessons from other successful businesspeople, including Y Combinator’s Paul Graham.

Stanford’s ‘How to Start a Startup’ series

Stanford’s archive of lectures about creating a startup includes advice from Y Combinator notables such as former YC president and OpenAI CEO Sam Altman and YC Cofounder Paul Graham.

CEO Gary Tan explains Y Combinators guiding philosophy

Hear YC President and CEO Garry Tan talk about why he values earnesty and excellent communication skills in YC founders, his thoughts on AI, and more in this unexpectedly deep and in-depth interview.

'Founder mode' is the idea that startup founders should take a hands-on approach to running their businesses

In 2024, Y Combinator cofounder Paul Graham popularized the idea of "founder mode" when he wrote a viral manifesto in response to a talk that Airbnb CEO Brian Chesky gave about leadership styles. Graham positioned the concept of founder mode as the opposite of manager mode—when founders hire executives and middle managers to run their companies and make decisions that Graham says are better left to founders.

Benjamin Graham is known as the 'father of value investing'

Graham was an investor, author, and professor who was also Warren Buffett's teacher and mentor during his time at Columbia University. Graham is still considered one of the most influential people in the world of investing today.

'In my experience, each failure contains the seeds of your next success—if you are willing to learn from it.'

- Microsoft cofounder Paul Allen (1953–2018)

Read an email Steve Jobs wrote himself in 2010

Steve Jobs apparently liked to email himself to save his thoughts. This archival email, written the year before he died, shows Jobs expressing gratitude and wonder for the world and its creative people.

Warren Buffett's former professor Benjamin Graham is known as the 'father of value investing,' a strategy in which investors seek to buy stocks trading below their intrinsic worth.

Vitalik Buterin’s current thoughts on Ethereum

Vitalik Buterin isn’t just the founder of Ethereum—he’s also a blogger. In this blog post from late last year, Buterin discusses some of his favorite applications built on Ethereum: prediction markets like Polymarket, where users can bet crypto on the outcome of events like elections. Buterin argues that prediction markets also act as news sites for non-bettors, opening the floodgates for many different kinds of info-based apps on Ethereum. Read the post here.

The dot-com stock bubble taught Howard Marks about markets

Annual investment letters from Howard Marks, the billionaire cofounder of top distressed debt shop Oaktree Capital Management, are required reading on Wall Street. The prolific writer and investor explains the distinction between the folly of trying to time the market and the necessity of paying attention to market cycles. The difference makes all the difference in returns.

Read Palantir CEO Alex Karp's most recent shareholder letter

Alex Karp's latest shareholder letter details both the company's outlook and recent performance, but also provides insight into what leadership finds important more generally. In this letter, Karp addresses Palantir critics and external concerns about the use of Palantir's technology for government surveillance.

Google's early focus on simplicity and user experience drove its future successes

Google Search revolutionized information retrieval in 1998, but additional web-based products, including Gmail, Maps, Docs, and YouTube reinforced the company's core ad business while allowing it to aggregate the world's information. Forming Alphabet protected this business from riskier moonshot projects.

'Ogilvy on Advertising' is David Ogilvy's career memoir full of his favorite copywriting advice

Ogilvy is one of the most famous and influential advertising executives in history, known for his focus on research-driven advertising. But he also wrote multiple books, including "Ogilvy on Advertising," which the Founders podcast dives into in this episode.

Bezos has frequently cited a 1999 article titled Amazon.bomb to illustrate how dire the early predictions about Amazon got

Over the years, Amazon founder Jeff Bezos often recalls how wrong the predictions in the 1999 Barron’s cover story were. Among other things, that article declared Amazon’s entire business model to be unsustainable and destined to fail, noting its lack of profit and dependence on a massive amount of capital to fund its growth.

A conversation with Wikipedia’s cofounder

In the early 2000s, the nonprofit free encyclopedia Wikipedia launched and became one of the most visited sites on the internet. This lengthy interview with cofounder Jimmy Wales provides insight into how the encyclopedia originated, how it is funded, its plans for the future, and a number of other facts about the hugely influential resource.

A rich archive of the visual imagination of the Cold War era

The blog aggregates art, design, fashion, and technology from the atomic and space age, spanning mid-century American futurism and its Soviet counterpart. The content has a broad range: escape pods from a B-58 bomber sit alongside Tour de France caravan vehicles and unidentified industrial designs.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

The case for optimism

Author, editor, and thinker Kevin Kelly makes an argument for optimism. Not only as a personal philosophy, but as a moral obligation, focusing on the need for optimism in overcoming challenges. Drawing examples ranging back to the Wright brothers,...

Understanding college basketball's guru, UCLA's John Wooden

John Wooden coached UCLA to an unprecedented 10 NCAA titles, including seven straight from 1967 to 1973. He studied the characteristics that made people successful and, in 1948, created his iconic triangular diagram with 25 common behaviors. This article unpacks the 25-block framework that makes the "Pyramid of Success" and shows how Wooden's off-court wisdom shaped future champs like Bill Walton and Steve Kerr.

See a timeline of all of Elon Musk's business ventures

From the software company Zip2 in the 1990s to Musk's Twitter acquisition (which he later renamed X), Elon Musk has run, founded, and invested in many different businesses over the past three decades.

The foundation for computer viruses was published after its creator's death

In the late 1940s, Hungarian American mathematician, scientist, and engineer John von Neumann gave a series of lectures where he explained the theoretical framework for a computer program that could replicate itself—the von Neumann Universal Constructor. His lectures were later compiled and published in 1966, nine years after his death from cancer.

View a gallery of vintage photos of Martha Graham's performances

Graham's choreography was as visual as it was physical, complemented by the modernist set design of Isamu Noguchi. That's on display in this collection of artful photos from classic productions of shows like "Night Journey" and "Appalachian Spring."

How a pencil-making company helped fund Thoreau's books

Thoreau's father ran a pencil-making business, designing a model that dominated the American market and paid for his son's Harvard education. Later, Henry David Thoreau would use the business to fund the publication of his two books, "A Week on the Concord and Merrimack Rivers" and "Walden."

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

Learn how to read a prospectus, the juicy document that any company must file with the SEC before going public.

How Amazon operates a 'flywheel' business model, a self-reinforcing cycle that drives continuous growth

American dance legend Martha Graham, sometimes called 'the Picasso of dance,' refused to perform at the 1936 Olympics in Berlin and conceived the piece 'Chronicle' in response to the experience.

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Before writing 'Walden,' transcendentalist Henry David Thoreau nearly burned down his hometown with a campfire that grew out of control.

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

Against his wishes, Albert Einstein's brain was removed before his cremation, and the pathologist responsible stored it for decades in mason jars within a beer cooler.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

As of 2025, the most cited papers in science include a review of graphene, methods to improve image recognition, streamlining electron density calculations, and optimizing protein studies.

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

American short story writer Flannery O'Connor raised 40 peacocks, which became potent symbols for her fiction's elegant violence

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

The Brothers Grimm were lawyers before they were storytellers, and became interested in fairy tales as they began investigating how rules and customs had been passed down through cultures.

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

Memecoins are a type of cryptocurrency—a form of digital currency with a wide variety of uses—created around popular 'memes,' or viral internet jokes.

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.