2) Database services – powerhouses like Dun&Bradstreet, Harte-Hanks, Acxiom, Equifax, infoUSA, and Merkle dominate this category , but B2B marketers tend to think of them more as list generators than providers of a broad spectrum of strategic data management to direct mail execution. 2) Email services – Julie Katz at Forrester writes about this group. My money is on the continued evolution of all of these types of tools and services. One challenge many of us have is that we're poor buyers of business software. Any consultants out there? Exciting times.