M. Varela, J.P. Leal

Faculdade de Ciencias da Universidade de Lisboa (PORTUGAL)
Currently the means of knowledge dissemination provided by the Internet are vast: personal pages, social networks (like Facebook), content management platforms (CMS) such as Moodle, virtual platforms where you can display 3D content (such as Second Life), or theme pages. In this last group and considering what concerns to Portugal, you can refer to "Casa das Ciências” (House of Science) ( or “o Mocho” ( ), portals of scientific disclosure that accept many contributions, subject to further evaluation by specialists prior to its dissemination on the web.
However, one question remains. Are all these means equally efficient? The same article or published material, has the same demand or impact if put on a facebook page or on a science thematic page? People who consult these materials will attribute the same credibility to materials found in Second Life (though possibly more graphically appealing) and materials published on an educational institution Moodle? Does material published on a personal page of the authors are consulted and used as much as issues placed on pages such as "Casa das Ciências”?
To answer these questions the authors put different resources on the Internet, making use of different media (one of the author’s personal page, Moodle portal of two institutions -one university and one basic school, “Casa das Ciências” portal and facebook). Over time, the visualizations/accesses and/or downloads made in each one of the platforms were registered.
The present communication seeks to answer, as far as possible, to these questions and understand which is the best way to disseminate educational material on the web, providing the users with the confidence they are using credible and quality materials.