Currently I'm serving as the member of editorial boards of the following journals:

• International Journal of Computer Science and Software Technology (International Science Press
• International Journal of Computing and Information Technology (Research Science Press)
• IAENG International Journal of Computer Science (International Association of Engineers)
• International Journal of Advanced Research in Computer Science (IJARCS)
• International Journal of Social Network Mining (Inderscience Publishers)

I'm the member of the program committees of the following conferences and workshops:

• TR4Web: Trust, Risk, Reputation and Recommendation on the Web Latvia 2009
• ADMKD: ADBIS Workshop on Data Mining and Knowledge Discovery ADMKD 2005 (Estonia), 2006 (Greece), 2007 (Bulgaria)
• Spring Young Researchers Colloquium on Databases and Information Systems SyRCODIS 2005 (Russia), 2006 (Russia), 2007 (Russia), 2008 (Russia), 2009 (Russia)
• International Conference on Social Informatics SocInfo 2009 (Poland), 2010 (Austria), 2011 (Singapore)
• International Conference on Ambient Systems, Networks and Technologies ANT 2011 (Canada)
• International Conference on Advances in Social Networks Analysis and Mining ASONAM 2012 (Turkey)
• International Conference on Social Computing and its Applications SCA 2011 (Australia)
• International Conference on Networked Digital Technologies NDT 2010 (Czech Republic)
• International Symposium on Methodologies for Intelligent Systems ISMIS 2011 (Poland)