The homepage of the Centre for Humanities, Arts and Letters of the Federal University of Paraíba is listed among the web information sources indicated by the Univerity’s Carta de Serviços ao Cidadão. The present study intends to collaborate towards increasing the quality of this source of information through the Users Study in Information Science based on Usability Engineering, mainly the concept of usability adopted by Jakob Nielsen, associated to the atributes of learning facility, use efficiency, memorizing facility, error occurrences and subject satisfaction.