Sentence:  Now we are liberal with our innermost secrets, spraying them into the public ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and <WSD>clouds</WSD> operated by people we don't know and will never meet. 
Meaning of the word marked with <WSD> tags:  The Internet, regarded as an abstract amorphous omnipresent space for processing and storage, the focus of cloud computing.