Monitoring the Evolution of Cached Content in Google and MSN
In this paper, we describe a capture-recapture experiment conducted on Google's and MSN's cache directories. The anticipated outcome of this work was to monitor evolution rates in this these web search services as well as measure their ability to index and maintain fresh and up-to-date results in their cache directories. In our intentions was to also employ Yahoo! in our experiments. However, we could not estimate the refresh rate of Yahoo!, since this search service does not publish the information when the cache version was taken, while Google and MSN do.