Bill Gates, Warren Buffett, and Larry Ellison have stayed in the top 20, but the likes of Elon Musk and Mark Zuckerberg have joined them.

Elon Musk's $1 billion offer to rename Wikipedia is still valid. Musk reiterated his proposal, initially made last year, ...

Donald Trump, whose own wealth has been estimated to top $5 billion, is bringing on a series of billionaires to join his ...

The best time to buy an electric vehicle may be right now. That's because a $7,500 federal tax credit could soon disappear.