Journal Selection Criteria	Research Areas	Time Period	Data
50 most cited Journals (Thomson: ISI - Web of Knowledge 2003)	Biochemical Research Methods, Biochemistry and Molecular Biology, Biology, Biophysics, Biotechnology and applied Microbiology	1995-1999	Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map
50 Journals with highest impact-factor (Thomson: ISI - Web of Knowledge 2003)			Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map
50 randomly selected Journals (Thomson: ISI - Web of Knowledge 2003)			Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map

Journal Selection Criteria	Research Areas	Time Period	Data
50 most cited Journals (Thomson: ISI - Web of Knowledge 2003)	Psychiatry, Psychology	1995-1999	Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map

Journal Selection Criteria	Research Areas	Time Period	Data
All Journals in PubMed found by query: "Physics"	Physics	1995-1999	Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map

Journal Selection Criteria	Research Areas	Time Period	Data
50 most cited Journals (Thomson: ISI - Web of Knowledge 2003)	Biochemical Research Methods, Biochemistry and Molecular Biology, Biology, Biophysics, Biotechnology and applied Microbiology	2000-2004	Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map
50 Journals with highest impact-factor (Thomson: ISI - Web of Knowledge 2003)			Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map
50 randomly selected Journals (Thomson: ISI - Web of Knowledge 2003)			Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map

Journal Selection Criteria	Research Areas	Time Period	Data
50 most cited Journals (Thomson: ISI - Web of Knowledge 2003)	Psychiatry, Psychology	2000-2004	Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map

Journal Selection Criteria	Research Areas	Time Period	Data
All Journals in PubMed found by query: "Physics"	Physics	2000-2004	Statistics Table (World) Statistics Table (USA) Single Journal Statistics (World) World Map