Google has had a page caching component in its search results for years: just click on the "cached" link near a search result, and you'll find a version of the item as it last looked when Google was crawling it (
here, for example, is what this page looked like a month ago). This is an invaluable tool for those moments when a Web site's server is down or old content has been removed. But as
ZDNet UK points out, it's more probematic as of late as content providers begin to shift to subscription and registration based access to archived content. Choosing the cached page option can allow one to view content that has slipped from the free zone into the controlled arena. Google has some workarounds to address the aspects of this caching problem that may not be fall under the protection afforded to caching under the Digital Millennium Copyright Act (DMCA), but it's a reminder that search results are not just pieces of information that lead to content but content itself, as well.