The trickle of layoff info became the Rio Grande today at Time Inc., as the company elimated 289 jobs in the most extensive round of cuts since announcing its wide-scale restructuring last year. The 289 breakdown: 117 business side; 172 editorial, 86 of which Time Inc. hopes will be voluntary buyouts. The cuts represent 2.8 percent of Time Inc.'s workforce. Time is shuttering its Atlanta, Chicago and L.A. bureaus; People will shut down four: Austin, Chicago, Miami and Washington. Said Time Inc. CEO Ann Moore in a memo to staff: "You will continue to hear much speculation about our company in the press, so I encourage you to stay focused."