Portals represent a wide diversity of information. As organisations try to leverage more and more internal and external information and knowledge assets for competitive advantage and developing core competencies, variants of custom developed portals have burst on the scene. Enterprise Information Portals (EIP’s) have started acting as the gateway to the Implicit and Explicit knowledge assets for organizations. This paper intends to discuss the evolution, benefits and architecture of an EIP. In the end the future roadmap for EIP’s is also outlined.