Those are creative ideas. Someone might point out that Pandora pre-dates OKCupid, and Wikipedia existed long before GitHub. I'm actually curious about "GitHub

Those are creative ideas. Someone might point out that Pandora pre-dates OKCupid, and Wikipedia existed long before GitHub. I'm actually curious about "GitHub" but for "Fashion". Right now, I don't see a feature in common between any of "like X but for Y" pairs except for the presumption that Y will be as popular as X or the use of algorithms. In other words, "Microsoft but for Bagels" sounds the same way to me.