This time it was six long hours before a second flash corrected the first with the news that it was engine trouble and not a midair explosion that had forced Lindbergh to make an emergency landing on treacherous terrain in the mountains of western Pennsylvania.

NPR: Roth Rewrites History with a 'Plot Against America'

Digital access is fueling the explosion in interest in family roots, says Cliff Shaw, who founded the genealogy-themed search engine Mocavo.com last year.

WSJ: Using Wikis and Other Forms of Group Research, Family Historians Are Making Surprising Connections