PennMedia.com http://www.pennmedia.com, one of the Internet's largest e-mail newsletter advertising network, today announced that it is adding four new "clusters" to provide targeting options for
business-to-business marketers.
The new B-to-B clusters include Road Warriors, Human Resources, IT Crowd and Admins. With the addition of these clusters, PennMedia now offers a total of 29
clusters, five targeting business users and 24 targeting consumers.