The cool thing about Christian Online Radio Stations is that you get to create your own playlist. That way you throw out the "boaring" stuff and add the "cool" ones. (This of course doesn't apply to live online radio). One thing I've come to realize is that what's "cool" to me may be boring to others and vice versa. I was just at the songs page on WTR. There's quite a selection here too.
Since there are quite a few different tastes in music, there are quite a few net radio sites. I find Lucky Seven (http://luckysevenradio.com/) has a good Christian feed. A friend of mine put me onto Reign Radio (http://www.reignradio.com/) which plays classic rock/metal. A local station for me that is pretty good is Life 100.3 (http://www.lifeonline.fm/). This site is an online feed of a broadcasting station and has a variety of shows throughout the day instead of steady music streaming. I know there's tons more but I find these enough for me.
try Spirit 105.3 (KCMS) out of Seattle. If you like your CCM a little harder, try their Spirit Edge web stream. These are ministries run by CRISTA Ministries which also includes World Concern, Christian Veterinary Mission, and a number of local-to-Seattle ministries.