Gates tops Forbes' billionaires list

TechWeb | at | by Mike

For the first time, everyone on Forbes magazine's just-released annual list of the 400 richest Americans are worth at least $1 billion.

The collective net worth of the country's wealthiest rose $120 billion to $1.25 trillion.

Microsoft founder Bill Gates landed at No. 1 on the list with a net worth of $53 billion. Warren Buffett, who runs the holding company Berkshire Hathaway Inc., came in No. 2 with $46 billion.

Buffett in June agreed to donate 85 percent of his fortune, valued then at $37 billion, to the Bill & Melinda Gates Foundation and four family charities.