The trick to writing any sales email is that you don't want it to read like a sales email. This one's a great example. There's few better ways to engage someone than to ask them for advice. People love giving advice. It's a chance to sho...

When you think of user-generated content, YouTube instantly comes to mind. The popular online video sharing platform has 2 billion users, of which a high proportion are 18-34 year olds. This makes it a highly desirable platform for brand...

YC Partner and growth expert Gustaf Alströmer talks about how to measure product market fit, how to decide on a growth channel, metrics that lie about PMF and other mechanics of growth for startups......

Attention is modern-day currency. Without it, you’ll struggle to survive. For the majority of human existence, the only way for people to exchange goods and services was through physical contact. But, as the internet began to evolve in t...

When I joined Instagram in 2016, the product had over 400 million users, but the growth rate had slowed. We were growing linearly, not exponentially. For many products that would be viewed as an amazing success, but for a viral social pr...