in which I wonder about internet searches

You know, I thought internet searches worked by using keywords/tags/labels but reviewing Sitemeter data listing various visitors who stumble upon this blog from searches, it's really apparent that it's my blog titles that are coming up in search results, not any of the labels. 

For example, one visitor was looking for "funny picture of radish", and the result was not the actual post of my uber-manly root vegetable, but this one in which I reference the radish in the title.  

(I've also noticed that all the searches leading here were done on Google. Blogger is owned by Google. Coincidence? Or perhaps no one really is actually using any other search engine?)