Bostonians Rachel and Tom Claflin wanted to go to California last Christmas to visit three of their children. But what about Tom's parents, who lived three blocks away and, at 86 and 89, couldn't manage on their own? No problem. Rachel and Tom were able to take their trip, secure in the knowledge that the elder Claflins had volunteers available to check on them daily, a round-the-clock emergency phone line and access to discounted nursing care, drivers and home repair, among other services.
Both generations of Claflins belong to a "virtual" community called Beacon Hill Village, which has arranged for residents...