Online course delivery can be a dynamic learning experience where information is used to shape and extend thinking. The challenge is creating a virtual classroom that combines evocative resources with tasks that enhance and stimulate student learning. New models are needed to reflect the changing learning environment that began with the advent of the Web. Librarians are experts in locating learning materials across the electronic landscape. They construct resource-based assignments that promote understanding of content and develop independent thinking skills. They bring a context for resource-rich learning environments and the necessary support mechanisms to ensure learners gain information literacy skills. This paper outlines how librarians can contribute to new course design models that maximize the effective use of online resources in support of student learning. (Contains 3 figures and 29 notes.)