There used to be a service that would, given a query, search eBay for listings that matched it or common misspellings based on nearby keys. I wonder if any of t

There used to be a service that would, given a query, search eBay for listings that matched it or common misspellings based on nearby keys. I wonder if any of that logic has made its way into modern autocorrect explicitly or if it would be gathered implicitly through studying what users actually correct.