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Among the factors contributing to higher expenses: Amazon has been investing heavily to build up its distribution infrastructure in both the physical and digital realms, with new warehouses and a revamped tablet lineup.?The company is also likely to report more than 100,000 employees for the first time in its history, continuing its rapid growth.

Amazon’s second Seattle campus is officially expanding?to?five blocks.

Among other things, Google unveiled new ways for its massive network of computers to identify images, as well as recommend, share, and organize photos. It also is launching an attempt to make its voice-controlled digital assistant more proactive and visual while expanding its audience to Apple's iPhone, where it will try to outwit an older peer, Siri.

Amazon’s stock surge over the past five years. (Image via Google Finance)

Among the 91 commercial 5G contracts Huawei has inked, the largest number by any telecom gear maker so far, more than half are from Europe, where Washington has spared no effort to dissuade its allies from using the company in their 5G systems.