Web search engine launched on June 1, 2009. On July 29, 2009, Yahoo! and Microsoft finalized a deal in which Yahoo! Search would be powered by Microsoft Bing technology. A search engine maintains the following processes in near real time: Web search engines get their information by web crawling from site to site. The "spider" checks for the standard filename "robots.txt", addressed to it, before sending certain information back to be indexed depending on many factors, such as the titles, page content, JavaScript, Cascading Style Sheets (CSS), headings, as evidenced by the standard HTML markup of the informational content, or its metadata in
Trip (search engine) This is a repository of clinical Q&As from a variety of Q&A services. At launch it had over 5,000 Q&As and currently has over 6,300. This content has been integrated into Trip. Trip (search engine) Trip is a free clinical search engine. Its primary function is to help clinicians identify the best available evidence with which to answer clinical questions. Its roots are firmly in the world of evidence-based medicine. The site was created in 1997 as a search tool to help the staff of ATTRACT answer clinical questions for GPs in Gwent, South Wales. Shortly afterwards "Bandolier" highlighted the