Jaakko Lappalainen is a computer scientist currently working towards his PhD at the University of Alcalá in Spain. His research interests include web technology and cloud computing. He lives in Madrid and works in the Information Engineering Research Unit of the university's computer science department, which focuses on e-Learning. His current projects involve integrating distributed semantic repositories and optimizing SPARQL queries, as well as integrating heterogeneous data sources using grid and distributed computing.