ycombinator.com
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Y Combinator is a leading startup accelerator and seed fund that supports early-stage companies with funding, mentorship, and a vast founder network. The site provides program details, application info, educational resources (like founder essays and talks), Startup School content, and a directory of YC-backed startups.
More resources on Entrepreneurship
Indie Hackers
Community site for founders of small, self-funded software businesses, featuring interviews, public revenue numbers, and discussion forums. Readers can compare pricing decisions, customer acquisition tactics, and growth paths across bootstrapped products rather than venture-funded startups.
Paul Graham Essays
Complete archive of Paul Graham's writing, including the essays on founder mode, doing things that don't scale, and startup ideas that shaped Y Combinator's advice. Argumentative rather than instructional, useful for forming judgment about early-stage decisions.
The Hard Thing About Hard Things
Brutally honest Silicon Valley veteran's guide to navigating startup challenges including layoffs, demotions, firing friends, and managing crises.
How to Start a Startup
Paul Graham's 2005 essay, adapted from a Harvard talk, arguing that startups succeed by combining good people, a product customers want, and frugal spending. Covers finding ideas, choosing cofounders, understanding users, raising angel money and deciding whether to start one.
Entrepreneurship I: Laying the Foundation
A four-module Coursera course from the Gies College of Business on early-stage ventures: generating ideas and pitching, customer discovery interviews and market sizing, forming founding teams and splitting equity, and designing business models. Learners can assess an opportunity and structure a new venture.
Startup School
Learn entrepreneurial leadership from YC partners! Startup School is your guide to building a successful company.