RT Journal Article SR Electronic A1 ALCNAUER, Július T1 COMMUNICATION FOR THE 21ST CENTURY: BLOGS AND SOCIAL NETWORKS JF Trends in education YR 2010 VO 3 IS 1 SP 306 OP 309 UL https://tvv-journal.upol.cz/en/artkey/tvv-201001-0067.php AB The paper presents new directions in communication in the 21st century and their influence on the public opinion. Also it presents a survey of students´ opinions and the change in the attitude of companies in the formation of public relations. It suggests a possibility of conducting independent research into the blog efficiency using the EIZ method in school practice.