The paper describes a unique cooperative agents testbed that aims at addressing diverse applications for the difficult problem of seamless personal information networking. The real-worM testbed is aimed at two difficult applications, Seamless Messaging and intelligent network management. Both applications are agent-driven and share agent behaviours and the messaging agents rely on the network management device diagnostic agents for input. The paper introduces both problem areas in a common testbed. Usercentric seamless messaging assumes heterogeneous communication environments intended to support today’s nomadic users. The aim of it is to intercept, filter, interpret, and deliver multi-modal messages be they voice, fax, video and/or e-mail messages. A user’s Personal Communication Agent is charged with delivering messages to the recipient regardless of their target messaging device be it a telephone, a pager, a desktop, a wireless laptop or a wireless phone. A taxonomy of agents and behaviours for the Seamless Networking testbed is introduced.