An enterprise portal generally delivers content so it can be consumed, but portal software also typically aggregates content and data from a variety of locations. Perhaps more importantly, portals are designed to deliver a variety of services as well: include search, collaboration, document management, business intelligence, business process management, and more.
A web content management system generally supports the production of content, but some products deliver content as well, which can make them "portal-like." This is especially the case in the open-source world, where the systems often grew out of dynamic page delivery systems.
Web Content Management Vendors
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