KlickAud - Klickaud is a free web-based application to online download SoundCloud track, music, songs in MP3 formats.
CONV. - Convert YouTube video to MP3, GIF or MP4
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.
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
Soundcloud-Download.com - SoundCloud Downloader - download music from SoundCloud easly!
Yout - YouTube to Mp3 Converter