Satellite networks have unique advantage in applications like rapid deployment, situation awareness, and emergency response. The satellite network is often paired with terrestrial wireless networks to form a hybrid satellite-wireless infrastructure to support user mobility [Zhang and Dao, 1996; Dao and Perry, 1996]. However, the mismatches in characteristics of satellite and terrestrial wireless networks must be handled properly to allow effective utilization of available bandwidth, and timely delivery of highly relevant information. We have developed an Intelligent Information Dissemination Services (IIDS) model to address this. We believe it is the right model to support the dissemination and maintenance of extended situation awareness throughout such a network information infrastructure in a seamless manner.