In addition of informing the public through various online social networks, we have recently also created the international and localised online social communities who are either related to our areas of expertise or to individual groups of various products and services. We invite you to become an active member of one or more communities and thus enrich the exchange of information and knowledge between members of each community. Exchange of information and knowledge of international communities normally takes place in English. However, individual online communities are opened also in more languages and in several social networks, ie. in LinkedIn and Facebook. They are presented below.