1. Elon Musk's Best Investments
https://www.investopedia.com/articles/investing/031316/elon-musks-5-best-investments-tsla-pypl.asp
2. Will Elon Musk's SpaceX Go Public?
https://www.investopedia.com/articles/markets/121515/will-elon-musks-spacex-go-public.asp