Game/movies soundtracks.
Youtube also.
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Game/movies soundtracks.
Youtube also.
Browsing Youtube, easily. Many of the post-80s songs I've hunted down were actually decent for casual listening standards.
Here is the link where you can search your best music...
http://www.lostintechnology.com/internet-tools/top-10-ways-to-discover-new-music/#.TplW9ZvhEyo
What an eye opening thread! Really don't have anything to add that hasn't already been mentioned. Looks like I'll have hours of pleasurable searching in the near future. Thanks

No - that would actually be an awesome tool. If you ever find it - give me a shout !
Music-map has been really good. Going through a Joe Bonamassa period at the moment - so looked him up in music-map a couple of days ago and discovered Colin James. Wonderful blues with a real jazzy undertone - am sure he'll lead me somewhere else in a few more weeks 
I subscribe to Spotify, MOG, and Rhapsody music services. I use them all in different situations, and I just can't get myself to drop any one of them, yet. Spotify has a genre search with 944 different choices. And, no, some of the selections don't always seem to make sense, but it is a useful tool when I get that urge to experiment with new sounds.
You can read more about it at the link below, and from there you can check out the list in the form of a public Google Doc.
http://www.spotify.com/us/blog/archives/2009/03/24/spotify-genres-the-full-listing/
I copied the list into a spreadsheet and use a random number generator to select a genre to test out. Nothing like a bit of Bhangra to pass the afternoon away, or some Finnish Folk to liven-up your morning.
Other than great forums like this - Slacker Radio and good ole' YouTube
friends, head-fi, books about music's history. Then I go on youtube for "trials".