Sam Altman: “If you join a company, my general advice is to join a company on a breakout trajectory.”

Mattermark is a powerful lead enrichment and prospecting platform that helps businesses search and discover information about other companies and key individuals, allowing them to build actionable lists of leads, quantify signals, and identify and capitalize on potential business opportunities.

Acquiredby is a tool where you can browse a definitive list of tech mergers and acquisitions.

Startup Graveyard is a resource for entrepreneurs to avoid making the same mistakes as failed startups. Just started on twitter, follow for new additions!