Ispark

50) Gillian Welch - (Time) The Revelator
49) The Roots - Phrenology
48) Queens of the Stone Age - Songs for the Deaf
47) Silver Jews - Tanglewood Numbers
46) Guided by Voices - Isolation Drills
45) Neko Case - Blacklisted
44) Solomon Burke - Dont Give Up On Me
43) Kathleen Edwards - Failer
42) Mark Lanegan - Bubblegum
41) Joe Strummer and the Mescaleros - Streetcore
40) Lucinda Williams - World without tears
39) Missy Elliot - Miss E…So Addictive
38) Sparklehorse - Its a wonderful life
37) The Libertines - Up the Bracket
36) The Black Keys - Rubber Factory
35) Franz Ferdinand - S/T
34) Wolf Parade - Apologies to Queen Mary
33) Bob Dylan - Love and Theft
32) The Flaming Lips - Yoshimi Battles the Pink Robots
31) Drive By Truckers - Decoration Day
30) Ryan Adams - Gold
29) Steve Earle - The Revolution Starts Now
28) Elvis Costello - The Delivery Man
27) The Strokes - Is This It?
26) The White Stripes - White Blood Cells

25) The Shins - Chutes Too Narrow
24) The White Stripes - Elephant
23) Cat Power - You Are Free
22) Loretta Lynn - Van Lear Rose
21) Devendra Banhart - Cripple Crow
20) My Morning Jacket - It Still Moves
19) Outkast - Speakerboxxx/The Love Below
18) Steve Earle - Jerusalem
17) Iron and Wine - Our Endless Numbered Days
16) Wilco - A Ghost is Born
15) PJ Harvey - Uh Huh Her
14) Kanye West - Late Registration
13) The New Pornographers - Electric Vision
12) The White Stripes - Get Behind Me Satan
11) Sleater Kinney - The Woods
10) The Mars Volta - Frances the Mute
9) MIA - Arular
8) Anthony and the Johnsons - I Am A Bird Now
7) Tom Waits - Real Gone
6) My Morning Jacket - Z
5) Tom Waits - Alice
4) Wilco - Yankee Hotel Foxtrot
3) Brian Wilson - Smile
2) The New Pornographers - Twin Cinema
1) The Arcade Fire - Funeral

Obvious omissions…..
Interpol
Spoon
The National
The Mountain Goats
M Ward