New York--Bigfoot Interactive Inc. has been tapped by Baltimore-based marketing software developer Vertis Inc. to develop e-mail marketing services that will be marketed to Vertis' clients. Vertis, which becomes part of Bigfoot's interactive partner program, will market Bigfoot's e-mail marketing platforms and services to Vertis' Fortune 1000 clients. Bigfoot's services include list acquisition, consulting, database integration and analytics. The news comes as Bigfoot extends its b-to-b business. Last month, the company started "Profile," an e-mail newsletter for marketers interested in e-mail marketing.