Have you noticed my Google ads to the left?
The way these work is their computers look at the content on the page and try to tailor the ads to fit the content. They have really picked up on the posting about my football helmet being painted. Most of the ads for the last 2 days have been related to paint and body work.
I just find it interesting. Look at them each time you load the page and see how they change and what it seems to be picking up as being important. If you click on a post to leave a comment, then you should get a new set of ads that will be targeted to the information in that post. Or, at least, it should.
This works better on a blog that has somewhat of a running theme (which often I do talk about running). When you have a consistent topic, then it is more able to tailor ads specifically for your readers.