SABnzbd - SABnzbd is a free/open-source cross-platform binary newsreader written in Python.
alt.binz - alt.binz is a powerful binary newsreader, for downloading and managing articles from Usenet.
NZBGet - The most efficient usenet downloader.
nzb360 - nzb360 is a featured rich NZB / torrent manager, providing dedicated support to Usenet and torrent users.
NZBGet.com - Fast, reliable, and feature-packed NZB downloader.
HelloNzb - HelloNzb - The Binary Usenet Tool