Enterprise 3.0 which penetrates our society more thoroughly with the availability of broadband services has already been widely integrated into the contemporary processes and work environments. The synergy between Enterprise 3.0 and clustering advances innovation-stimulating environments in engineering education. The present research proposes phases of clustering to enhance engineering students' use of Enterprise 3.0 in tertiary education. Aim of the research is to analyze effectiveness of clustering for the development of engineering students' use of Enterprise 3.0 in tertiary education. The meaning of the key concepts of "Enterprise 3.0" and "clustering" is studied. Moreover, the study demonstrates how the key concepts are related to the idea of "engineering education". The explorative research has been used. The empirical study was conducted within the Sixth Baltic Summer School "Technical Informatics and Information Technology" at Kaunas Technical University, Lithuania, August 13-28, 2010. The sample involved 28 participants of the Sixth Baltic Summer School. Descriptive statistics (mean and standard deviation) were used for primary data analysis. The empirical results reveal that clustering with use of Enterprise 3.0 within the Sixth Baltic Summer School "Technical Informatics and Information Technology" is effective for the development of engineering students' use of Enterprise 3.0. Finally, directions for future research are proposed. (Contains 6 figures and 4 tables.)