Listenbox - Podcasts from audio & video on the web
Headphones - Automatic music downloader for SABnzbd. Headphones is an automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent, Deluge and Blackhole.
Lidarr - Lidarr is a music collection manager for downloading and organizing music libraries.
music2pc - music2pc is a free program to find and download MP3 songs from the Internet.
YouCast - An archive of the CodePlex open source hosting site
MP3base - MP3box - free mp3 search and download, stream music online for free, play tons of artists, albums and songs without registration.