The article deals with the issues of development of critical thinking of students by means of web technologies. It presents the analysis of different scientific approaches to the organization of critical thinking training of students. The authors state that among the means of the above mentioned critical thinking development scientists distinguish information and communication technologies, particularly web technologies, as having a significant didactic and critical thinking potential. The experience of using web resources to verify information and data in the process of students' critical thinking development is explained. The article gives examples of the using remote special course on the basis of web resources implementation into real learning process. The application of web resources provides an opportunity to intensify critical thinking motivation of students, involves them in solving the discussed problems, and develops critical thinking skills, the ability to independently create and develop new knowledge based on the information received. Comparison of the results of ascertaining and forming sections allows to ascertain the effectiveness of the proposed pedagogical condition for the development of students' critical thinking by means of web technologies and the effectiveness of the developed remote special course for developing students' critical thinking by means of modern web technologies.