For on-line radio I'd try [url=http://peercast.org]peercast.org[/url] or [url=http://shoutcast.com]shoutcast.com[/url] Both these websites feature independent radio stations from around the world and have genre searches.

SR Music has a fair bit of hip hop on but it's all Toronto artists: [url=http://music.tobroadcast.com]music.tobroadcast.com[/url]

Do you know any internet radio station
like that: hip hop [url=http://stream.forummotion.com/]radio[/url] online?