The document discusses library portals at top academic institutions. It provides an overview of library portals and their functions, including personalized access to resources like e-journals, databases and reference services. Specifically, it analyzes the portals of the top 5 world universities - MIT, Stanford, Harvard, Caltech and Cambridge. All provide search tools, research support and information about resources and services. While their designs vary slightly, collectively they exemplify modern academic library portals.