1. Guest editorial

   • Vijay Atluri
   • Anupam Joshi
   • Yelena Yesha

   EditorialNotes Pages: 285 - 285

2. Managing multiple and distributed ontologies on the Semantic Web

   • A. Maedche
   • B. Motik
   • L. Stojanovic

   OriginalPaper Pages: 286 - 302

3. Learning to match ontologies on the Semantic Web

   • AnHai Doan
   • Jayant Madhavan
   • Alon Halevy

   OriginalPaper Pages: 303 - 319

4. THESUS: Organizing Web document collections based on link semantics

   • Maria Halkidi
   • Benjamin Nguyen
   • Michalis Vazirgiannis

   OriginalPaper Pages: 320 - 332

5. Composing Web services on the Semantic Web

   • Brahim Medjahed
   • Athman Bouguettaya
   • Ahmed K. Elmagarmid

   OriginalPaper Pages: 333 - 351

6. POESIA: An ontological workflow approach for composing Web services in agriculture

   • Renato Fileto
   • Ling Liu
   • Claudia Bauzer Medeiros

   OriginalPaper Pages: 352 - 367