> am sure Google, Amazon and Microsoft continue to do doing this as well, but it seems that Facebook is doing this most successfully or at least most prominently with its total destruction of Snap.

"Most successfully" is probably hard to measure. While Snap is perhaps the single largest example, both Google and Amazon may have had greater overall benefit of this approach...just in a longer tail way that's hard to quantify as a single big visible event.

How much revenue, for example, has Google extracted from the travel market?