I know for a fact eat24 did this, and a crappy looking website called Beyond Menu. I'm not sure if GrubHub did this (before the merger). A lot of the times the goals of these sites were to make it look like you were ordering from the restaurant directly, so it was a bit obscured. Order Ahead did this, but only because frankly everyone else was doing it (they definitely didn't spearhead it as a relatively late entrant into the space).