Waltham, Mass.--Zapdata.com said late Monday that it has partnered with myNetsales.com to combine e-mail marketing lists and marketing services. The deal means that b-to-b marketers can pluck b-to-b leads from the 11 million U.S. business names housed in Zapdata's database and then track the number of those leads converted to buyers through myNetsales, Boston. The deal is the latest example of e-mail names becoming more malleable for b-to-b marketers and follows on the heels of a plan by The McGraw-Hill Cos.' Professional Book Group to work with VentureDirect Worldwide Inc. to add e-mail names to its list of more 400,000 b-to-b buyers. The Zapdata deal is significant because it is one of the first to combine a list of e-mail names with a sales force automation program. Today, many marketers are forced to alter the names they purchase to fit the format of an e-mail marketing tool, whereas Zapdata's names will now come ready to plug into myNetsales' marketing service.