This paper seeks to analyse the forms of organisation of scientific communities, based on
their management of both presential and virtual modes. There is a preliminary comparison
of various networks of researchers, with details from the case of the RII as an international
and interdiscipinary
space for research, based on the activities of research, edition, diffusion and teaching and
the use of presential and virtual modes. It is proposed that scientific communities constitute
one of the principal social forms of the knowledge society; that these communities
depend increasingly on the use of information and communication technology; but that
there is a wide variety in their ways of organising networks and using information and
communiction technology, according to the style of each network.