In the article the involvement of Ukrainian politicians and diplomats to Twitter social network and it is compared the advantages and disadvantages of using this social network within the framework of their professional activity is analyzed. As the usage of social networks in electronic diplomacy in Ukraine is being developed, it is asserted the nessesity of complex investigation of foreign experience which can be useful for Ukrainian diplomats and will help them to use Twitter successfully, as a tool for diplomatic activity.
A social network and investigated with regard to minimum load on the server. The principles of designing social networks. The results of the tests developed by social network analysis and load on servers.
In this paper existing types of virtual communities and their features were analyzed. Formal model of virtual community and web forum was developed.