General Motors Co. says its money-back guarantee -- key to its revival -- is going so well it will extend the program until early 2010. The automaker launched its "May the Best Car Win" campaign in September as a way to get consumers to try GM cars and trucks with minimal risk. Consumers have been leery of the Detroit company since it filed for bankruptcy protection earlier this year. The program, which offers refunds within 31 to 60 days of purchase, had been slated to end Nov. 30 but now is scheduled to run through Jan. 4.

JetBlue to beef up Boston service 30 percent JetBlue said Thursday that it will boost its service from Boston Logan by 30 percent by next summer, as bigger carriers pull back and competition from rival Southwest Airlines heats up. JetBlue, based in Forest Hills, N.Y., plans to offer up to 78 daily flights from Boston to 33 destinations. JetBlue currently serves more cities out of Boston than any other airline.

Knopf holds off on e-book of Agassi memoir Andre Agassi's memoir "Open" will not be available as an e-book when the hardcover comes out Nov. 9, and publisher Alfred A. Knopf has not set a date for a digital version. "We're not releasing an e-book at this time but may consider releasing one in the future," Knopf spokesman Paul Bogaards said Thursday. E-editions also have been withheld for Sarah Palin's "Going Rogue," Edward Kennedy's "True Compass" and Stephen King's "Under the Dome" as publishers worry that the growing e-market will take business from hardcovers. In Agassi's book, the tennis great acknowledges using crystal meth in the 1990s and then lying to the Association of Tennis Professionals tour after failing a 1997 drug test.

ASSOCIATED PRESS