MUTE: Simple Anonymous File Sharing
http://mute-net.sourceforge.net/

MUTE File Sharing is a peer-to-peer network that provides easy search-and-download functionality while also protecting your privacy. MUTE protects your privacy by avoiding direct connections with your sharing partners in the network. Most other file sharing programs use direct connections to download or upload, making your identity available. MUTE File Sharing compiles as a fast, native application for many platforms (no Java, no Python, etc.). This has been added to Privacy Resources Subject Tracer™ Information Blog.