Optimizing your web site for a search appliance like Google Mini can be tricky work; one of the gotchas I recently ran across was when a site I'm working on was indexed using Google Mini and the index contained keywords for pages that had little relevance to one another. This meant that the wrong pages were being returned in the search result-set for some keyword searches.
Our site, apart from the main content page, has a lot of different information on display that is pulled into a page automatically, some of it related to the main content and some of it random. However, the Google Mini index picked up everything on each page as it crawled the site. Problem.
However, a quick investigation by one of the team found the following document that provided the vital information to exclude the unwanted text from the index. Now the index is cleaner and returns a more relevant results-set when a search is run on the site.