Usually to search something in the web people use some keywords. Google provides an efficient way to make a search not only text documents but in the PDF, MS Word etc which are not readable without special applications. Now it’s time to search a video by words which occur there. Unfortunately, Google cannot help you but Blinkx can. Blinkx is the worldâ€™s largest and most advanced video search engine:
Unlike other multimedia search engines that attempt to re-purpose technology built for the Text Web, blinkx uses a unique combination of patented conceptual search, speech recognition and video analysis software to efficiently, automatically and accurately find and qualify online video. Today, blinkx is the worldâ€™s largest single index of rich media content on the Web, delivering more content from a broader range of sources than either Google or Yahoo!