Keepvid is one of the most popular Youtube converter online. It supports just about any video sharing site out there. Another great thing about Keepvid is that it displays the most famous videos on the web so you can quickly download the most watched videos.
Now when it comes to converting my favorite Youtube videos to Mp3 ListenToYouTube is all I need to visit. It not only converts the video to Mp3 but it also reduces the size of the file big time. Normally a video is 20-25Mb each but ListentoYouTube reduces the size to 3-4MB which is quiet amazing. All you need to do is enter the Youtube Url int he search box and click go. Once the file is processed simply click the download link and save the file on your computer.
Another great way to convert Youtube Videos to Mp3 is by using Flv2Mp3.com. FLV to MP3 Converter is 100% free and you donâ€™t need to install additional software to download yout favorite Youtube video.