Webometrics is a scientific discipline that studies the quantitative aspects of information sources and their use. In other words, webometrics try to measure the World Wide Web, analyses technology usage and allows us a simple content analysis. As Figure 1 shows, webometrics is affected by many scientific disciplines:
- Bibliometrics – is the quantitative analysis of documents in scientific communication; the documents reflect the state of scientific knowledge.
- Cybermetrics – is the quantitative research of information sources, structures and technologies on the Internet; a study of discussion groups, email communication, etc.
- Informetrics – is focused on the information stream in networks and demonstrates on the basis of mathematical and statistical methods a variety of relations between them.
- Scientometrics – is focused on the evaluation of efficiency of scientific-research or individual researchers by citation counts.
Nevertheless, webometrics is primarily based on informetric and bibliometric approaches. The information sources that are studied by webometrics are web documents.