publication venue for SEEK-AT-WD: A social-semantic infrastructure to sustain educational ICT tool descriptions in the web of data. 17:321-332. 2014 Leveraging Quiz-based Multiple-prize Web Tournaments for Reinforcing Routine Mathematical Skills. 16:28-43. 2013 Integrating Algorithm Visualization Video into a First-Year Algorithm and Data Structure Course. 15:115-124. 2012 Design and implementation of a 3D multi-user virtual world for language learning. 14:2-10. 2011 New Directions in Advanced Learning Technologies. 12:1-2. 2009 ELO-Tool: Taking Action in the Challenge of Assembling Learning Objects. 11:102-117. 2008