I noticed something this morning that I hadn’t seen before. On my blog ITsVISTA I use Google’s AdSense. In the sidebar I use a Link Unit, which displays four links to keywords related to the page they are on. It normally looks something like this:

At least that’s what it’s supposed to show. On one of my pages today I saw the following:

Is that an Ad Search Engine? I can now search for ads on any topic I choose? I only saw it that one time, and after many other pageviews and reloads can’t get it to reappear, so perhaps they are just testing it in a very limited trial. I have to wonder though, who would actually search for ads? This would be even less useful for me than the public service ads that periodically appear (at least those serve a public service).

Has anyone else seen this? Has it been around for a while and I just haven’t noticed? What is the purpose? Do they really believe people are interested in searching for ads? So many questions…