The usability tests we have conducted during the last year have shown an increasing reluctance among users to accept innovations in Web design. The prevailing attitude is to request designs that are similar to everything else people see on the Web.
Jakob NielsenThe system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
Jakob NielsenThe web is the ultimate customer-empowering environment. He or she who clicks the mouse gets to decide everything. It is so easy to go elsewhere; all the competitors in the world are but a mouseclick away.
Jakob Nielsen