Google Search versus All Others

I'm always interested in how people find my site. After all, I seldom link and comment on news stories, preferring my own life and the stories it produces. Along with the multitude of books I read. Anyway, I often look at the referrer logs that Extreme Tracking provides for me. I've noticed something that may or may not be worth comment. Google will correctly identify the keywords the searcher requested, but direct them only to my home page, even if the search should refer to an archive. Yahoo (I mean Yahoo!, MSN, AOL, etc. refer to the correct archive page. Being that Blogspot is powered by Google, you'd think that they wouldn't do this. Funny, eh?