Amid a decline in advertising revenue for commercial broadcast radio, and the growth of broadband internet access, online radio has proliferated in recent years. The launch of  Sun Radio is the latest example. Ten internet stations you might not have listened to yet. Read more: Radio Facts Legacy 30th Anniversary Issue.
WFMU
What the Americans call a listener-supported station based in New Jersey. It claims to be the longest running freeform (non-commercial) station in the US.
wfmu.org
Radio Popbitch
Music chosen by otters for humans.
radiopopbitch.com
Soma FM
San Francisco DJ collective specialising in underground and alternative music.
somafm.com
Woxy
Formerly one of the biggest commercial stations in the US, 97X ended up surviving online as Woxy. The future of rock and roll, from Ohio.
woxy.com
Resonance FM
A radio station that claims to make publicise art and music that has “no place in traditional broadcasting”.
resonancefm.com
Rhubarb Radio
The brainchild of a small group of bloggers, the Birmingham-based radio station focuses on creative industries and the local music scene.
www.rhubarbradio.com
Kooba Radio
Unsigned band s and unsigned artists; based in London.
www.koobaradio.co.uk
Indie 103.1
Indie radio station in LA that switched from traditional radio to internet only.
www.indie1031.fm
Last FM
Often termed a “music community”, after attracting more than 30 million active users, it was sold to CBS Interactive for  £140m.
It builds profiles of each listeners’ musical tastes. UK-based.
www.last.fm
Radio Paradise
Listener-supported US station seemingly based on the work of just two DJs. Mix of most genres.
www.radioparadise.com