Recently, techcrunch reviews a specialized search engine called Middio that focuses on music videos. It indexes the videos uploaded from YouTube (the music videos and only the music videos) and displays search results for your favorite recording artist. While it's still in BETA, the reviewers claim it works pretty fast.

According to the company's site, "No bothersome ads are shown on any page or before any videos begin..." so it's not clear how they plan to monetize the search results. You can sign up online to check it out yourself; it's available May 5.