Sentence:  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 clouds operated by people we don't know and will never meet. Perhaps we assume that our name, address and <WSD>search</WSD> preferences will be viewed by some unseen pair of corporate eyes, probably not human, and don't mind that much. 
Meaning of the word marked with <WSD> tags:  The act of searching in general.