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Mobile Minutes: Amazon bolsters Alexa; Facebook and ephemeral messaging; Baidu?s regulatory probe; Bursting tech bubble

Amazon.com Inc. is investing between $250,000 and $500,000 in Bluetooth technology company TrackR to extend the reach of its Alexa virtual assistant, according to a source familiar with the matter.

Facebook is reportedly looking to integrate the popular ephemeral messaging concept into its own Messenger application after failing in similar attempts twice with individual apps in the past. 

Regulators from two departments have launched a probe into Baidu, China?s largest online search engine operator and one of the country?s largest entertainment giants.
Read more on Variety

When the dot-com bubble burst in early 2000, the fallout for publicly traded stocks was quick and severe. The Nasdaq Composite Index fell 37 percent in the 10 weeks following its peak on March 10, 2000.