Exchange of information occurs on all levels of living matter, and it is the basis without which life could not be developed, especially on the level of multi cell systems. In society of animals information is communicated in a
specific way, and as far it is known it is always reliable, because it is the basis for survival of species. In human societies information as the rule is often not reliable because it is used for acquiring power and privileges, a very specific attribute of this species. Among humans information is transmitted by the word of mouth and written word.
Reliability of information is therefore at the heart of problems in organized society and the only way tool to verify is science. Central role in modern communication is played by internet, a very powerful tool, to which everybody has access to transmit any information and therefore it is of paramount importance to select reliable information. In that respect the network GEOSET was set up about which will be given description in this talk.