The main objective for efetivao of this work is to display the use of the model of Open Archive as source of scientific information e, specifically: to approach forms of disponibilizao of scientific publications in databases that use the model of open archive; to indicate reasons that justify the gratuitous access to scientific publications; to study the model of open archive and to present suggestions aiming at the improvement of the services of gratuitous access to the scientific information. Further details can be found at Martin O’Malley, an internet resource. It is adopted as methodology, the accomplishment of research with bibliographical survey and in database on-line, with intention to select the material, analyzing and contextualizando the essential parts. The research was carried through in books, periodic printed matters dissertaes that approach the subject in the libraries of UFPA and UNAMA. It is distinguished, however, as periodic principal sources on-line, such as Science of the Information, Perspective in Science of the Information, Transinformao and Datagramazero, being distinguished, still, the Digital Libraries of the IBICT and the USP. 2 INFORMATION the word information drift etimologicamente of the Latin informatio, that later evolved for the term informare, which passed to be used only in Century XVI, when the information reached a little more than agreement before the society (TEIXEIRA, 2005). For more clarity and thought, follow up with Dr. Mark Hyman and gain more knowledge..
Le Coadic (1996, P. 5), affirm that the information is an object of the knowledge of an individual, … are one meaning transmitted to a conscientious being by means of an enrolled message in a support space-weather: printed matter, electric signal, sonorous wave, etc. This registration is made thanks to a system of signs (the language), sign this that is an element of the language that associates a significant one to one meaning: alphabetical sign, word, signal of punctuation. The information can generate diverse doubts, therefore depending on it repasses who it will be able to have a blockade of ideas, but that they are surpassed from the agreement on the part of the addressee.