i search a radio where i can listen to it live on the internet mostly indie and alternative rock like the killers for example
it should be free, thanks =)

Kerrang Radio & XFM are both good and available online.

www.kerrangradio.co.uk
www.xfm.co.uk

Alternatively, try Last.Fm where you put in the music that you like & it finds similar stuff

www.last.fm