Medicalbuyer.com, Johnson City, Tenn., a trading exchange for medical supplies, has hired William-Labadie and TFA/Leo Burnett Technology Group to boost its overall marketing effort. The move underscores the pressure existing trading exchanges are under to create brand awareness ahead of corporate-driven digital depots. Founded three years ago, Medicalbuyer.com discounts products in the $35 billion medical supplies industry. TFA/Leo Burnett Technology Group and William-Labadie have been assigned to deliver a comprehensive promotional plan and boost the company's brand awareness. Billings for the account were not disclosed.