When using the Internet resources for training and making professional guidance for students of senior classes, the teaching staff has to process large amounts of unstructured, chaotic placed materials: descriptions of professions, professionally oriented tests, some pieces of advice on choosing a profession and educational institution, records of prominent people in a particular area, interviews with representatives of different professions, requirements for admission to higher education institutions and so on. The aim of this study is to make the description of developing of the collection of electronic educational resources with career guidance topics via social bookmarking service Diigo. The service was designed to store links to pages on different sites and text fragments in these pages. During the study of the social bookmarking service Diigo capabilities, there were used the following methods: • theoretical: analysis of scientific, psychological-educational, methodological, special literature on the subject of the study, sources of the Internet, modeling and design in the process of creation and improvement of collection of electronic educational resources with career-oriented subjects – to highlight the theoretical basis of the study; • empirical: diagnostic (deliberate pedagogical observations, interviews with teachers and students, teachers’ experience analysis), study, analysis of possibilities to improve the existing collections and develop new ones of electronic educational resources for usage in the career guidance activity – for the statement of the problem’s resolution stage; • experimental: pedagogical observation of the process of usage of the electronic educational resources’ collections for professional guidance of the secondary schools’ senior pupils, using of the collection of electronic educational resources with career-oriented topics during pedagogical staff’s training courses to test the proposed methodology and introducing the main provisions of the research to the secondary schools practice. As a result of the study, the collection of the pages’ bookmarks for sites with career-oriented subjects was built and it can be used during professional guidance for the students of secondary schools.