Reserach (e.g. Borgman, Bates etc.) repeatedly confirms that end-users find OPACs difficult to use. And recently an interesting observation was often mentioned when discussing OPACs: some users use Amazon as front-end to OPACs. They find a book they want to borrow in Amazon and then use ISBN to find the call number in the catalogue (see e.g. https://intranet.lib.byu.edu/wwg/?p=13). This may not be the prevalent current practice, but it certainly points to a problem: average OPAC interfacesseem to be less user-friendly than Amazon at least to some users. Amazon will of course not replace libraries, but librarians must have continuous interest in and understanding of what users need and want and how they search for information. We need therefore to analyse what other services do better and try to implement appropriate changes in our own services. Some library systems have already made the first steps in this direction.