Of the 100 patients surveyed (78 male, 22 female; mean ages, 32 years, SD, 9.61 years; 32 years, SD, 15.16 years, respectively) 79% had access to a computer either at home or at work; 56% used a computer regularly; and 40% searched the Internet either occasionally or regularly. Twenty-five of the most frequently occurring terms (eg, knee, ligament, cruciate) were used by the researcher (S.R.) to search the first 50 uniform resource locators from 5 search engines. Although only correctly spelled terms (n=20) were used in the search, 20% of the terms had been misspelled by patients (eg, cruchiat, cartilidge). Almost 5947 Web pages were accessed and categorized according to patient information, specialist information, commercial pages, sports news, unavailable, and other. Of the 5947 Web pages, 1219 (20%) contained patient information; 1130 (19%) professional information; 535 (9%) commercial information; 119 (2%) sports news; 488 (8%) were unavailable, and 2456 (41%) were classed as other (eg, non-English pages without English translation, bulletin boards, chat rooms). Of the patient information pages, only 395 contained knee-related information. Therefore, only 7% of the identified Web pages were considered of relevance for our patient sample. The choice of "lay" search terms did not significantly influence the search result. Only 1 page of 5947 was provided by a gateway service, ie, a service that facilitates access to previously reviewed Web pages.