Webcrawler was a very popular search-engine before the days of Google. It was well-known for it’s ability to find non-webpage content on the net. It still stands true today with its strength being the ability to find a multitude of media types (video and audio).
It’s now based on Microsoft’s 4.0 Development Kit, which limits its ability to exand onto search in realitivity and makes the search concentrate on more exact phrase matching.
But it still stands as a very open search engine that can seek-out the media you may be looking for.