Greenwich, Conn.--Direct Media Inc. announced it has formed the BTB Data Warehouse Consortium, an alliance with other list and database companies. Paradysz Matera Co., American List Counsel Inc. and Integrated Direct Marketing L.L.C. will work with Direct Media to develop technology applications for the database. The consortium currently includes 900 lists and 78 million net names. The data are housed at Acxiom Corp.