According to Google's note within the interfac uk email address list e, "Your ads appeared when people searched on the terms below. These search terms were matched to your ads based on the keywords in your ad groups." Their note goes on to state that "use this reporting feature to see every user search query that triggered your ad. Whether your ad is triggered depends on the search term a web user submits when searching on a site within the Google Network and your keyword match settings.

You can add search terms from the list to your ad group keyword list, or add the terms as negative keywords to ensure your ad stops triggering for the keyword." What is most alarming about this whole thing is that I was concurrently running other campaigns and ad groups that contained some of the same exact terms that Google decided to match to "red widgets". I can get over the fact that the Google reporting is screwy (well, not really), but to top it all off, I checked some of my other campaigns that contained these Google-matched terms.