Thanks to this message board, I have taken an interest in monitoring the FM band here in Seattle for any pirate activity, especially as I am driving around the city from place to place. (I have the most commonly-used FM pirate frequencies programmed into my car radio and I scroll through them as I'm driving).
So far, I have identified three pirates, one on 87.7 FM and two operating on 101.9 FM:
One is broadcasting modern music on 101.9 FM, interspersed with announcements about street crime and local events taking place in the Capitol Hill neighborhood.
The second one is transmitting long spoken word segments on 101.9 FM, in what sounds like Mandarin Chinese, along with "New Age" type music, from my own neighborhood near Shoreline, WA.
The third is broadcasting on 87.7 in the West Seattle area. This broadcast is sporadic and typically only transmits when local community events are taking place.
W9SPY
Almost forgot to add this: With the exception of the pirate in my own neighborhood, the other two are fairly well-known locally, as our local news have done stories on them both.