Long time music lover looking for new music.

Wow! You're just finding out about allmusic? Pitchfork is THE site for all of this style of music. I'd recommend trawling through their Best New Music section going back a few years. Tons of links to samples too.

very good list, I have similar music taste to the op. Vampire Weekend - Contra and The XX - XX are a MUST.

I'm cutting and pasting my Top 50 of The 2000s for you to check out. There may be some stuff on here you'll like. The only criteria I had was not having multiple albums by the same artist. I also had a Top 50 Electronic albums hence the weird title.

TOP 50 NON-ELECTRONIC ALBUMS OF THE 2000's
1-The Decemberists-Picaresque
2-Built To Spill-Ancient Melodies Of The Future
3-Phosphorescent-Aw Come Aw Wry
4-Rilo Kiley-The Execution Of All Things
5-M. Ward-Post-War
6-The Arcade Fire-Funeral
7-Panda Bear-Person Pitch
8-Cat Power-You Are Free
9-Neko Case-Blacklisted
10-The Avalanches-Since I Left You
11-Bon Iver-For Emma, Forever Ago
12-Iron & Wine-Our Endless Numbered Days
13-Japancakes-The Sleepy Strange
14-Thao With The Get Down Stay Down-We Brave Bee Stings And All
15-Sleater-Kinney-All Hands On The Bad One
16-J Dilla-Donuts
17-Sufjan Stevens-Illinois
18-Band Of Horses-Everything All The Time
19-Yeah Yeah Yeahs-Fever To Tell
20-Stars Of The Lid-And Their Refinement Of The Decline
21-Santogold-Santogold
22-The Microphones-The Glow Pt. 2
23-Ry Cooder & Manuel Galban-Mambo Sinuendo
24-The Flaming Lips-Yoshimi Battles The Pink Robots Pt. 1
25-Blonde Redhead-23
26-Tord Gustavsen Trio-Being There
27-Steven Wilson-Insurgentes
28-Bill Frisell-Good Dog, Happy Man
29-Fleet Foxes-Fleet Foxes
30-My Morning Jacket-Z
31-Steve Tibbetts-A Man About A Horse
32-Bohren & Der Club Of Gore-Dolores
33-The White Stripes-White Blood Cells
34-The Beatles-Love
35-Sunn O)))-Black One
36-The New Pornographers-Electric Version
37-A.C. Newman-Get Guilty
38-Wilco-Yankee Hotel Foxtrot
39-Portishead-Third
40-Rainer Maria-A Better Version Of Me
41-Black Mountain-In The Future
42-The Gutter Twins-Saturnalia
43-Brian Wilson-Smile
44-Jesse Sykes & The Sweet Hereafter-Like, Love, Lust & The Open Halls Of The Soul
45-The Black Keys-Chulahoma
46-Pelican-What We All Come To Need
47-Hope Sandoval & The Warm Inventions-Bavarian Fruit Bread
48-Earth-Hex: Or Printing In The Infernal Method
49-Mogwai-Happy Songs For Happy People
50-Nik Bartsch's Ronin-Holon

Yes I just learned about allmusic.com after I started this thread and I just heard about pitchfork last weekend but I've been busy at work and haven't had much time to really check it out. Before I was just using amazon.com and wikepeda. I did find a lot of music I really liked but I had to work for it. You guys have made life easy on this old music lover. But now I'm busy listening to all this new stuff. I love it. Keep them coming.

Nice mentions on this thread.

Here are some more (a couple of repeats maybe):

Wilco - try Summerteeth, Yankee Hotel Foxtrot, Sky Blue Sky
White Stripes - anything really
+1 Okkervil River - someone mentioned them above, try the Stage Names
The Sleepy Jackson - not new, but Lovers is great album
The Flaming Lips - I like the older stuff, but try Yoshimi
Black Keys - I see you have Dan Auerbach on your list already
The Decembrists
+1 Calexico
Spoon
Mumford & Sons - I really dig these guys