Analyzing the keywords reports in Google Analytics can tell us a lot about the site and the visitors. We can see which sections of the site are most visible to search engines, and we can get a feel for what visitors are expecting when they come to the site.
The problem with keywords reports, though, is that they are so exhaustive. They include every single keyword that brought at least one visit. Every variation of misspelling of a phrase shows up as a separate keyword, even though it returns the same results. When you get into keywords that only brought one visit, it's difficult to discern what is meaningful and what is a statistical anomaly. The bounce rates, time on site and other statistics aren't very helpful at a micro level, because we can't usually extrapolate what to do at a macro level based on a single visit.