This technique involves the automatic discovery of new resources for each category that the cache retrieves before any user requests them. The advertisement of these new documents is crucial to secure any real benefit, as is the precision of the resource discovery. Due to the inaccuracy of existing search engines, the verification of results is essential, for example, by comparing their summaries with the existing resources. There are numerous other opportunities that could extend the ideas proposed in this paper, utilising the cached content, access history and presentation in different ways. These applications could support the growing industry trend of providing personalised services, community-oriented facilities and automated delivery of information.
Many Web sites offer personalised e-mail services for obtaining reports about relevant changes.
Since the cached content is a dynamic store of documents, a similar notification system is applicable. Further, since the proxy server maintains detailed information about user browsing behaviour, it would be possible to develop an automatic profiling and recommendation system. Push technologies might provide an alternative to e-mail. Advanced graphical interfaces and visualisation technologies are applicable to the problem of viewing the cache index. Individual users or groups could be provided with customised views of the cache based on their access profiles or other submitted criteria, for example, school assignment topics.