I did a search for "Indiana agriculture" without quotes. The first result was:

"Indiana — Agriculture: Corn, soybeans, hogs, cattle, dairy products, eggs
According to http://www.junk-yard.org/salvage-yard-indiana.html"

With Indiana being a link to that site.

Did the same thing for Illinois and Wisconsin and got the similar thing.

Tried it for California and Oregon and didn't get that.

Then, tried it for Missouri, and got:

Missouri — Agriculture: Cattle, soybeans, hogs, dairy products, corn, poultry and eggs.
According to http://www.junk-yard.org/salvage-yard-Missouri.html – More sources »

Notice the "More sources" link.

Has anyone seen this "According to" thing? Are these paid ads? Just curious.

I see too "According to".
But I don't think it's an ads.

Thanks, Fr. I never saw this before tonight and thought it was rather curious.

This is not being counted as a search result.
There are ten other results.

Google extracts facts from web pages and it displays them if they're relevant to the query. After showing the fact, Google also lists one of the sources and links to other pages that include the information.

Sponsored links are marked accordingly, but they have nothing to do with this feature.