Investing in billion-dollar companies can provide more resources to effect change in the world, even if your primary motivation isn't profit.

The best companies drive social change, and it's important to believe in the value you're providing to people.

YC's nonprofit program has evolved, and we have learned that being surrounded by energetic for-profit startups is a significant advantage for nonprofit founders.

My last startup, bbop, was founded in 2013 and sold to Google in 2015 for $380 million, with my portion of the proceeds committed to nonprofits through a donor-advised fund.

I pivoted Salesforce's entire focus to Agentforce based on customer feedback, demonstrating its significance for the company. I constantly ask myself if I'm doing everything necessary to make Agentforce successful.

Reddit transformed from a community social science project into a sustainable business, recognizing that revenue is essential for its operation.

The business model includes generating revenue through grants and charitable donations, which allows for flexibility in funding projects without long approval processes.

When we went public, we raised $25 billion, which is not just money; it's the trust from people who want us to do better jobs and help more people.

Selling to startups can be a powerful strategy, as demonstrated by Gusto, which started with startups and successfully expanded into the broader SMB market.