General Reference
Encyclopedia of Earth - Well established free online encyclopedia
Earth Site Encyclopedia - Free online encyclopedia written specifically for students
Encyclopedia Britannica - A well established encyclopedia with articles written by Nobel Prize winners and leaders in their field
PlosOne - an international, Peer-reviewed, open source Journal
Subjects
Art and Design
Biology
Chemistry
Computer Science
Counselling
Earth Sciences
Ecology and Conservation
Economics
Education
Geography
Hospitality, Leisure and Tourism
Humanities
Journalism
Language and Linguistics
Law
Marketing
Media Studies
Medicine
Performance and Visual Arts
Pharmacy and Pharmaceutical Sciences
Photography and Film
Physical Education
Politics
Psychology
Sociology
Encyclopedia of Earth - Well established free online encyclopedia
Earth Site Encyclopedia - Free online encyclopedia written specifically for students
Encyclopedia Britannica - A well established encyclopedia with articles written by Nobel Prize winners and leaders in their field
PlosOne - an international, Peer-reviewed, open source Journal
Subjects
Art and Design
Biology
Chemistry
Computer Science
Counselling
Earth Sciences
Ecology and Conservation
Economics
Education
Geography
Hospitality, Leisure and Tourism
Humanities
Journalism
Language and Linguistics
Law
Marketing
Media Studies
Medicine
Performance and Visual Arts
Pharmacy and Pharmaceutical Sciences
Photography and Film
Physical Education
Politics
Psychology
Sociology