Radio.co - For radio people, by radio people.
AzuraCast - AzuraCast is a free and open-source self-hosted "web radio station in a box".
SHOUTcast Radio - SHOUTcast Radio is the home of free Internet Radio.
Centova Cast - Centova Cast is the world's most advanced Internet radio stream hosting control panel.
Radiologik - Video tutorials for Radiologik DJ and Scheduler radio automation on the Mac
SAM Broadcaster - SAM Broadcaster is a professional computer-based internet radio broadcasting solution.