- Information Systems Applications (incl. Internet) 11
- Computer Communication Networks 10
- Earth Sciences, general 6
- Earth System Sciences 5
- Ontology 5
- Plant Sciences 5
- Simulation and Modeling 5
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 5
- Cell Biology 4
- Cryptology 4
- Internal Medicine 4
- Life Sciences, general 4
- Microbiology 4
- Algorithm Analysis and Problem Complexity 3
- Biotechnology 3
- Communications Engineering, Networks 3
- Ecology 3
- Freshwater & Marine Ecology 3
- Immunology 3
- Management of Computing and Information Systems 3