ClipConverter.cc - ClipConverter.
VidToMP3.com - VidToMP3.
OnlineVideoConverter.com - OnlineVideoConverter.
Anything2MP3 - Anything2MP3 is a free online SoundCloud and YouTube to MP3 transformation device which permits you to change over and download SoundCloud and YouTube recordings to MP3.
MP3 Converter - Mp3 Converter is a free to use as YouTube to MP3 converter that allows you to convert and download YouTube to MP3, MP4, F4V and 3GP formats.
AudioTube.org - AudioTube.