Not that I claim to know everything, or have heard everything, but I've pretty much listened to anything related to, or similar to everything I already like. So now I'm stuck in, what I like to call the "Amazon Recommends Cycle". ... "If you like Soundgarden, you'll like Chris Cornell, If you like Chris Cornell, you'll like Temple of the Dog, If you like Temple Of The Dog, you'll like Pearl Jam, which leads to Eddie Vedder, Green River, Mother Love Bone, Mad Season, Screaming Trees, Alice In Chains, Jerry Cantrel,... eventually leading back to Soundgarden. So computer recommendations are useless at this point. Pick a genre and listen to it long enough and it'll happen to you as well.

The question is, is this it? Are there no more treasures to be unearthed from years gone by? Have I truly maxed out my listening experience? I haven't come across many older albums I've found interesting, and there are few newer ones worth mentioning. The newer stuff just sounds like the older stuff, so why deal with imitators when there are originators. The problem with that philosophy is that you do run out of originators. Sooooo.....
When I listen to new bands, I look for certain things. 1: Do they sound like a watered down version of a band I already know... ex. Godsmack sounds like a watered down Alice In Chains.... skip it. 2: If they do sound like a certain band, do they improve upon that sound? Ex. Mindless Self Indulgence improves on both the sounds of Marilyn Manson & Information Society creating some weird trippy hybrid of the two by my ears. So MSI gets a 4Y seal of approval because they push boundries. 3: Is it gimmicky? Lady Ga Ga. The songs are catchy, but we're dealing with nothing more than a Madonna/Cher update that adds nothing to the mix. More flash, less substance, accepted by all. Skip it.
So far it's been pretty bleak. There are a few exceptions but for the most part, the art of music has churned out band after band of psuedo-indie, mega star, disposable looptastic, pro-tool, mini-masterminds and/or Gruntry (my own genre for Country music that sounds like Grunge... i.e. Nickleback). And don't get me started on the Cookie Monster Metal. Try singing your lyrics rather than grunting them through a microphone that sounds like it's buried in human waste.
With all that being said, my view turns towards the future, waiting for something to create a ripple in the vast creatively still pond of music we now swim in.
I'll keep ya posted.