hmmmm, a little intrigued with the previous post, what part of the uk are you from? You make it sound awful, pirate radio stations linked to drugs and crime. Theres none of that where i am from, pirate fm stations were like 20 - 30 years ago.
Yes there may be too many online radio stations, however many of these are auto-dj systems on servers, and this shines through, auto dj systems are nowhere near as good as a proper playout system, theres no such seg's, no sweepers and pretty poor rotation. The stations with a good sound, good rotations and a good online presence shine through online today.