Evaluation of Web Based Information Sources: an Analytical Study with Particular Reference to Physics Reference Sources

The objective of this study is to identify and to evaluate Physics reference sources available on web. Result of the study shows that 52% of Web based sources contain the author's name and remaining 48% of Web based sources have no author's name. Among 404 Web based sources, 27% of them belong to commercial domains (.com) followed by educational domain (19.6%) and organisational (8.4%). Study also reports that 86.9% of dictionary and glossary's content is arranged in alphabetical order followed by subjectwise arrangement (13.1%). In case of encyclopedia 71.4% of source's content is organised in alphabetical order and only 28.6% is subjectwise arrangement.