A look at the burgeoning underground market connecting job seekers to anonymous employees willing to make a referral at Microsoft, Nvidia, Spotify, and others (Jo Constantz/Bloomberg)

Jo Constantz / Bloomberg:
A look at the burgeoning underground market connecting job seekers to anonymous employees willing to make a referral at Microsoft, Nvidia, Spotify, and others  —  Recommending strangers to companies like Microsoft and Nvidia has become a side hustle for enterprising employees  —  Copy, paste, refer.