WebSphere Portal Enable includes features of WebSphere Portal Server plus:  

• Improved IBM Workplace Web Content Management authoring capabilities, including a welcome page for new users, inline editing of Web content, simplified content templates, improved search of Web content and other improvements.
• WebSphere Portal Document Manager integration with Microsoft products now enables centralized file management and security-rich document sharing directly from Microsoft Windows and Microsoft Office. In addition, since this feature supports Microsoft Office 97 and higher, you can minimize costly upgrades.
• Utilizing portal workflow, WebSphere Portal Enable combines people and applications at a process level - the result is that people are more productive and processes are executed faster. Portal's navigation paradigm is not only role-based but also includes workflow orchestration that present users with the tasks they need to complete and all information and applications needed to complete the task or decision quickly. The result? People see the right information in the context of the task they are working on.
• Centralized document storage allows users to view, edit, add, delete, and search documents within a user-defined folder hierarchy. Users can easily share, view, and organize files of all types ranging from documents to spreadsheets within the context of the portal. Integrated collaboration features, such as sending direct links to documents, person links, and Directory Search, ease information development and productivity in a team environment.
• IBM Workplace Web Content Management helps to reduce portal implementation time and maintenance costs by placing content creation and management firmly in the hands of content experts for "author once, publish everywhere" control. IT staff can ensure proper security, access control and approval processes are in place and then hand over content creation to subject matter experts. The end result is that content on your portal is more accurate and can be updated frequently at a lower cost.