Chicago--YesMail.com Inc., a permission e-mail marketing agency, and BizTalk.com, a Delray Beach, Fla.-based small-business site, have entered an expansive b-to-b list management pact. YesMail will become the list management partner for BizTalk's 1.3 million-member b-to-b database. For YesMail, which has been consumer-centric to date, the deal underscores the major emphasis it is placing on b-to-b. "Growing our b-to-b database is a top priority for YesMail," said CEO David Menzel in a statement. "While marketers can choose from a vast supply of consumer e-mail marketing databases, there's a tremendous void in the marketplace for business-to-business data."