To Scars Unseen: Kind of a little out of my taste range, but not the worst stuff I've ever heard. Opeth I have heard of; they have an early Black Sabbath/Radiohead type influence to their music, so its interesting to listen to.
To insaninater: You make a good point. I used to have an iMesh account and used to love looking for new music on there. Too bad one of their patches screwed up my account and I could never make iMesh run properly on my computer again afterwards. But, yes, the internet is the place to go for new music. If you have the time and money to invest in it, Sirius XM used to be good back in the day for globally hearing new music. I'll admit I don't know if that is still true; haven't listened to it since 2004.
And, really, maybe this is the problem. Sometimes we get so stuck in ourselves that we fail to look to other countries for new music. I personally make a point to look internationally for music instead of just relying on the American music scene. Check out Emily Loizeau; she is a talented French folk rock artist. Kaiser Chiefs should be much more popular over here than they are, a British rock band that has been around a long time. Billy Talent is a Canadian punk band that now has four very solid albums to their credit. They take their time, and release a new recording every three years. In the 'Honorable Mentions' bucket, I would have to say check out AwolNation, The French Band AIR, even though I don't like much of their new stuff, 'Moon Safari', 'Talkie Walkie', and 'The Virgin Suicides Soundtrack' is some very stirring electronica. Nero's female singer is impressive, and more often than not saves the day on most of their songs. Zero 7 is classified as 'acid jazz', and has some very good guest singers work with them. I don't like everything by Snog, but the songs 'Last Days of Rome' and 'Vaguely Melancholic' are very good.