"Related searches"

How long has this been going on? The words in blue, above the images -

click on images to enlarge

Google in its omniscience is now linking together our interests for us, by telling us about "related" things we've looked for, or at.

I clicked on a link for Jaune Quick-to-See Smith and got images of her work all right - and links to searches of "related" artists - Romare Bearden, Kathe Kollwitz, and Robert Rauschenberg. (Are those my searches, or those of the person who put the link in her blog post?) Hovering on one of the names resulted in a preview of the artistk's images -

Clicking on a name, you get further "related searches" - kathe kollwitz self portrait, kathe kollwitz war, etc -

Fascinating!