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Abstract

Changes in the topography of the Web can be expressed in at least four ways: (1) more sites on more servers in more places, (2) more pages and objects added to existing sites and pages, (3) changes in traffic, and (4) modifications to existing text, graphic, and other Web objects. This article does not address the first three factors (more sites, more pages, more traffic) in the growth of the Web. It focuses instead on changes to an existing set of Web documents. The article documents changes to an aging set of Web pages, first identified and "collected" in December 1996 and followed weekly thereafter. Results are reported through February 2001. The article addresses two related phenomena: (1) the life cycle of Web objects, and (2) changes to Web objects. These data reaffirm that the half-life of a Web page is approximately 2 years. There is variation among Web pages by top-level domain and by page type (navigation, content). Web page content appears to stabilize over time; aging pages change less often than once they did

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Abstract

All text is ephemeral. Some texts are more ephemeral than others. The web has proved to be among the most ephemeral and changing of information vehicles. The research note revisits Koehler's original data set after about 20 years since it was first collected. By late 2013, the number of URLs responding to a query had fallen to 1.6% of the original sample. A query of the 6 remaining URLs in February 2015 showed only 2 still responding.

Date

22. 1.2016 14:37:14

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Abstract

We recognize that documents on the WWW are ephemeral and changing. We also recognize the Web documents can be categorized along a number of dimensions, including 'publisher', size, object mix, as well as purpose, meaning and content. This study is firsta preliminary exploration into Web page and Web site mortality rates. It then considers 2 types of change: content and structural. Finally, the study is concerned with understanding those constancy and permanence phenomena for different Web document classes. It is suggested taht, from the perspective of information maintenance and retrieval, the WWW does not represent revolutionary change. In fact, in some ways the Web is a less sophisticated form than traditional publication practices. Finally, this study explores the 'short memory' and 'mind changing' of the WWW