If you’re anything at all like me—and God, I hope you’re not—you never throw anything that uses electricity out, and have developed an elaborate series of dubious justifications to explain why it is actually perfectly rational. Maybe, after all, you’ll need that USB-A to RCA converter...

The Blackstone Group will buy a majority stake in the genealogy website Ancestry.com in a deal worth $4.7 billion, according to a press release published Wednesday. Blackstone Group, a private equity firm, is the world’s largest landlord and Ancestry is the world’s largest genealogy website,...