Ad company for music related site?

[HumanClay]

Just wondering if anyone can recommend a good ad company for a music site that receives about 20k page views a month and is growing?

I know one, MusicVision http://www.musicvision.com Does anyone know if this is a good company?

[Tem]

I remember them, i used to run a rap MP3 site and one day they contacted me and said that they wamted to advertise on my site. The weird thing is that at that moment i used to force my visitors to click on my sponsors to enter the page. Hehe, i declined, i didnt want to go into busines with someone that stupid.