Electronic resources represent an increasingly important component of the collection- building activities of libraries. "Electronic resources" refer to those materials that require computer access, whether through a personal computer, mainframe, or handheld mobile device. They may either be accessed remotely via the Internet or locally. Some of the most frequently encountered types are:
E-journals
E-books
Full-text (aggregated) databases
Indexing and abstracting databases
Reference databases (biographies, dictionaries, directories, encyclopaedias, etc.)
Numeric and statistical databases
E-images
E-audio/visual resources
"Little is known about Wikipedia contributors' information behaviour and from where and how the information in the encyclopaedia originated...... Understanding the information source use of contributors helps us to understand how new Wikipedia articles emerge, how edits are motivated, where the information actually comes from and more generally, what kind of information may be expected to be found in Wikipedia. "