CHICAGO (Standard&Poor's) Dec. 17, 2007--Standard&Poor's Ratings Services today said it placed its ratings, including the 'B+' corporate credit rating, on online travel agency Priceline.com Inc. on CreditWatch with positive implications. "The CreditWatch listing reflects the company's strong operating momentum, solid competitive position in Europe, and improving credit measures," explained Standard&Poor's credit analyst Andy Liu. As of Sept. 30, 2007, total debt outstanding was about $570 million. Revenues (excluding one-time items) increased 33% and EBITDA more than doubled for the quarter ended Sept. 30, 2007 over the prior year period. Priceline.com is benefiting from very strong bookings growth in international markets. During the quarter, international gross bookings increased 97.9% on a year-over-year basis driven by