Shoutcast DSP
Simplecast...

ect

Icecast2 is a free alternative to ShoutCast. I don't know if you can run your own ShoutCast server, but oddsock and icecast work well together.

For any streaming server you'll need enough bandwidth to support your listeners (# of listeners * stream bitrate).

do you want to stream your mixes or run an internet radio station?

if the latter see above

if the former:


make an m3u file and just link people.