I was browsing a website and I came across some google ads, but what was being advertised was a Contest started by Microsoft's “Bing”. I thought it was kind of weird to see it there. but I guess it’s one of those situations where all that matters is the Kids. (or the money) because this particular ad is about a contest to win money for a school.
I know things like this aren’t “new”. but it’s odd that a search engine would promote themselves through another engine.