Many books and articles have demonstrated the scope of sustainable development. Some of them illustrate, in particular, different approaches to sustainable tourism. But, sustainability is analysed in the literature mainly in an economic, social or environmental context. Relatively little attention has been paid to the psychological aspects of sustainable development or, rather, to the development of human beings and the opportunity to maintain the values of sustainability in a era of information technology.
Some research suggests that "...sustainable tourism can be defined as a tourism that meets the needs of the current generation without compromising the ability of future generations to meet their own needs." (Weaver, 2000, p. 300). It seems to be obvious that the term 'sustainable tourism' should also take into account the needs of future generations, including both the socio-economic and the psychological.
In this context, discussions on sustainability and tourism, seen particularly from the Polish perspective, become valuable for policy makers, if sustainability is seen as involving the environment as a whole, including human development and culture.
The purpose of this paper is to outline and discuss critically the factors that should be taken into account in the implementation of sustainable development, particularly factors related to information technology. Human communication based on new technologies creates threats for the mental development of our generation. Sustainability should therefore be seen as a complex approach to society's needs, first of all in relation to the development of the human being, and secondly in relation to social, economic and environmental development.
Some reasons for and negative consequences of using information technologies will be discussed in the paper. In this context the vision of sustainability will be suggested as a development, which respects the personal development of the human being on one hand and the optimal balance in our natural socio-economic environment on the other.