New York--In an acquisition that cements its role as the leading organization for direct marketers, The Direct Marketing Association has bought the Association of Direct Marketing Agencies. The ADMA brings 45 paid agency members to the DMA's roster. It will be dissolved as a freestanding association and melded into the DMA. Terms of the deal were not disclosed. "This acquisition will help grow direct marketing by combining the expertise behind the best direct marketing agencies throughout the country with DMA's information, representation and educational services as the consumer and business-to-business marketplace becomes ever more dynamic," said DMA president-CEO H. Robert Wientzen, in a statement.