Timeline of site search

This timeline covers within-site or within-app search as used by websites ranging from large content repositories (such as Wikipedia, Reddit, or Imgur) to e-commerce websites (such as Amazon and Target) to two-sided markets (such as eBay and Airbnb) to social media sites. The timeline includes key conceptual developments, new tools and technologies, and services (both cloud services and installable softwares) that power the search experiences.