This was one of those "I wish I had my camera" moments. This time I did have it!
On two occasions now I have found adware on my computer that makes links from key words on my blog posts. When I discover them I remove them. It's unfair for these companies to use my site to advertise their products which I neither get compensated for or even endorse. I do sometimes use links in my posts so for now at least if you see a single word link such as "book" or something similar don't click it.