In recent years, the secondary ticket market has grown substantially and become an attractive option for consumers, particularly sports fans. (canadianbusiness.com)
Just tickets marketed by AA, which includes flights operated by a ton of airlines. (milevalue.com)
A version of this article appears in print on January 17, 2011, on Page D5 of the New York edition with the headline: As Economy Has Sagged, the Online Ticket Market Has Taken Flight. (nytimes.com)