Academic libraries today vary in regard to the extent to which they accommodate those who are not affiliated with their parent universities. Some offer reading and borrowing privileges to members of the public on payment of an annual fee; such fees can vary greatly. The privileges so obtained usually do not extend to such services as computer usage, other than to search the catalog, or Internet access. Alumni and students of cooperating local universities may be given discounts or other consideration when arranging for borrowing privileges. On the other hand, access to the libraries of some universities is absolutely restricted to students, faculty, and staff. Even in this case, they may make it possible for others to borrow materials through inter-library loan programs.