Advantages of hypertext (i.e. online communication) are the following: significant increase of information size, growth of public informing level, interrelating data (by means of links), free access to various information sources , any user’s possibility to produce text online, global communication (with anybody, any time, anywhere), intensified socialization, interactive public, social recognition, promoting associative, creative and critical thinking, awareness and recognition of cultural diversity, intensified involvement in social problems, increased democracy (by means of online public voting) etc. Most disadvantages of hypertext are those of Internet or of modern technologies: lost identity, manipulated public opinion, excess of advertising, psychological disorder, broken relations, computer addiction etc.