EN
The objective of the article is researching of dependence between scientific and research activity and development of information infrastructure in terms of the knowledgebased economy. In the first part of the paper the author focuses on divergences in literature in defining the information infrastructure. Then the author characterizes the scientific knowledge in respect of social utility and presents the roles of science in a different models of innovation process. The last part of the article concerns for the system of scientific information and a special role of the Internet in development of information infrastructure for science needs.