The article describes methodological recommendations on the use of educational blog in the teaching students (on the example of the formation of a communication element of ICT-expertise of would to be educators on vocational training). The author suggests different electronic educational resources to form such expertise. Thus, one can use video lectures, visualization lectures, multimedia lectures, and electronic presentations. Students get and develop theoretical practice in class via interactive process when they discuss source material, different problems, solve tasks, practice, learn intersubject communications. Such practice is organized through person to person interaction that using educational blogs not only provides students with social and professional knowledge, but also develops personal qualities necessary for the professional field. The author characterizes training procedure at the three stages: preliminary, operational, reflexive and evaluating, showing didactic opportunities of educational blogs. Estimation criteria of students’ proficiency to participate in discussion on educational blog are offered. Educational blogs are regarded as an efficient training device to make a student change the position of a passive information consumer toward an active and conscious participant of the educational process.