TEDx events were created to allow the idea of TED conferences to spread independently. But have they uniformly managed to do so? Are they becoming a fad, or are they actually serving a purpose (and if so, what)? This is not so much about those TEDx events that work out great (and there are many of them) but those that don't (eg events that are hastily/shoddily conducted just to hang onto the name/licence, or to raise funds for other, related events). With virtually no quality control from the TED organisation, how is this expected to end up? What can be done to ensure that the TEDx events don't end up being zero-impact fad-events, similar to "pre-announced flash mobs" or "vendor-driven marketing barcamps"?