EghtesadOnline: Spanish retailer Amancio Ortega is the newest challenger to Bill Gates ’s position as the richest person in the world.

EghtesadOnline: Bill Gates made his largest gift since the turn of the century, giving away Microsoft Corp. shares that accounted for 5 percent of his fortune, the world’s biggest.

EghtesadOnline: Steve Ballmer said his decision to push Microsoft Corp. into the hardware business contributed to the breakdown of his relationship with longtime friend and company co-founder Bill Gates . Ballmer's only regret: not doing it sooner.

EghtesadOnline: As Bill Gates and Jeff Bezos jockey for the designation of world’s wealthiest man, the Seattle billionaires are united behind at least one local venture. They’re both investors in a trucking logistics startup that competes with Uber Technologies Inc.

EghtesadOnline: Echodyne, a radar array startup with investors including Bill Gates , his Microsoft cofounder Paul Allen’s Vulcan Capital, and Seattle’s own Madrona Ventures, just made what the company considers a landmark announcement for the future of self-driving vehicles.

EghtesadOnline: Bill Gates and more than a dozen of the world’s wealthiest individuals revealed a new $1 billion investment fund late Sunday to foster major advances in clean energy production.