Brown University - Influential researcher in Natural Language Processing and Artificial Intelligence. His home page features some of his publications, in postscript.
Microsoft Research - Type theory and operational semantics, mostly for applications to language design, semantics, and implementation. Semantic and type-theoretic foundations of object-oriented languages. Global and mobile computation issues.
Politecnico di Milano - Extending database technology to incorporate data distribution, deductive and active rules; object-orientation design methods for data-intensive web sites.