Online travel agencies (OTAs) are the original digital disruptors — first-generation internet businesses that identified an unmet customer need and created digital destinations that became the first stop for prospective travelers. Yet the very thing that gave rise to OTAs — the ability to aggregate digitized data to create economical, do-it-yourself travel planning — now threatens to be their undoing. As with most erstwhile digital upstarts and once-transformative business models, OTAs must disrupt again or risk being disrupted.