I didn't specify which one so I'll take the first edition from 1999. Here it is:
100 Aphex Twin - Selected Ambient Works 85-92 [R&S 1993]
99 Smart Went Crazy - Con Art [Dischord 1997] ?
98 MK Ultra - The Dream is Over [Artichoke 1999] ?
97 Massive Attack - Mezzanine [Virgin 1998]
96 Blur - Parklife [Virgin 1994]
95 Primal Scream - Screamadelica [Sire/Warner Bros. 1991]
94 Phish - Billy Breathes [Elektra 1996] ?
93 Underworld - Dubnobasswithmyheadman [Wax Trax!/TVT 1994]
92 Pale Saints - The Comforts of Madness [4AD 1990] ?
91 Sonic Youth - Dirty [DGC 1992]
90 Stereolab - Dots and Loops [Elektra 1997]
89 Spinanes - Manos [Sub Pop 1993]
88 R.E.M. - Automatic for the People [Warner Bros. 1992]
87 Tortoise - Millions Now Living Will Never Die [Thrill Jockey 1996] ?
86 Morphine - Cure for Pain [Ryko 1993]
85 Neutral Milk Hotel - In the Aeroplane Over the Sea [Merge 1998] ?
84 Superchunk - No Pocky for Kitty [Matador; Merge 1992; 1999] ?
83 Throwing Muses - The Real Ramona [4AD/Sire 1991] ?
82 Blur - 13 [Virgin 1999]
81 Hum - Downward is Heavenward [RCA 1998] ?
80 Lilys - Eccsame the Photon Band [spinART 1995] ?
79 Weezer - Pinkerton [DGC 1996]
78 Sugar - Copper Blue [Ryko 1992] ?
77 Nirvana - In Utero [DGC 1993]
76 Sunny Day Real Estate - Diary [Sub Pop 1994] ?
75 Super Furry Animals - Radiator [Creation; Flydaddy 1997; 1999]
74 6ths - Wasps' Nest [London 1995] ?
73 Belle and Sebastian - Tigermilk [Electric Honey; Matador 1996; 1999] ?
72 Uncle Tupelo - Anodyne [Sire/Warner Bros. 1993] ?
71 Portishead - Dummy [Go! Discs/London 1994]
70 Blur - The Great Escape [Virgin 1995]
69 Magnetic Fields - The Charm of the Highway Strip [Merge 1994] ?
68 Polvo - Exploded Drawing [Touch and Go 1996] ?
67 Stereolab - Transient Random-Noise Bursts with Announcements [Too Pure/Elektra 1993]
66 Soul Coughing - Ruby Vroom [Slash/Reprise 1994] ?
65 Modest Mouse - The Lonesome Crowded West [Up 1997] ?
64 Fugazi - Red Medicine [Dischord 1995] ??
63 Amon Tobin - Permutation [Ninja Tune 1998]
62 Walt Mink - Miss Happiness [Caroline 1992] ?
61 Jawbreaker - 24-Hour Revenge Therapy [Tupelo 1994] ?
60 Portishead - Portishead [Go! Discs/London 1997]
59 12 Rods - Split Personalities [V2 1998] ?
58 Red House Painters - Ocean Beach [4AD 1995] ?
57 Tom Waits - Mule Variations [Epitaph 1999]
56 Tom Waits - Bone Machine [Island 1992]
55 Belle and Sebastian - If You're Feeling Sinister [The Enclave; Matador 1997; 1999] ?
54 Spoon - A Series of Sneaks [Elektra 1998] ?
53 His Name is Alive - Mouth by Mouth [4AD 1993] ?
52 Fugazi - Repeater [Dischord 1990] ??
51 Laika - Silver Apples of the Moon [Too Pure/Beggars Banquet 1995; 1999]
50 Smashing Pumpkins - Siamese Dream [Virgin 1993]
49 Low - I Could Live in Hope [Vernon Yard 1994]
48 Heatmiser - Mic City Sons [Caroline 1996] ?
47 Amon Tobin - Bricolage [Ninja Tune 1997]
46 Elliott Smith - Either/Or [Kill Rock Stars 1997]
45 Pixies - Bossanova [4AD/Elektra 1990]
44 Sebadoh - Bakesale [Sub Pop 1994]
43 Frank Black - Frank Black [4AD/Elektra 1993]
42 Dismemberment Plan - Emergency and I [DeSoto 1999]
41 Built to Spill - Keep It Like a Secret [Warner Bros. 1999]
40 Kristin Hersh - Hips and Makers [4AD/Elektra 1994]
39 Built to Spill - Perfect from Now On [Warner Bros. 1997]
38 Chavez - Ride the Fader [Matador 1996]
37 Frank Black - Teenager of the Year [4AD/Elektra 1994]
36 American Music Club - Everclear [Alias 1991]
35 Bjork - Post [Elektra 1995]
34 Slint - Spiderland [Touch and Go 1991]
33 Guided by Voices - Alien Lanes [Matador 1995]
32 Archers of Loaf - Icky Mettle [Alias 1993]
31 Breeders - Last Splash [4AD/Elektra 1993]
30 Stereolab - Emperor Tomato Ketchup [Elektra 1996]
29 Shudder to Think - Pony Express Record [Columbia 1994]
28 Wrens - Secaucus [Grass; Wind-Up 1996]
27 Tortoise - TNT [Thrill Jockey 1998]
26 Brainiac - Bonsai Superstar [Grass; Wind-Up 1994; 1996]
25 They Might Be Giants - Flood [Elektra 1990]
24 Fugazi - In On the Kill Taker [Dischord 1993]
23 Elliott Smith - XO [Dreamworks 1998]
21 Beck - Mellow Gold [DGC 1994]
20 Jeff Buckley - Grace [Columbia 1994]
19 Jawbox - For Your Own Special Sweetheart [Atlantic 1994]
18 Bjork - Homogenic [Elektra 1997]
17 Walt Mink - El Producto [Atlantic 1996]
16 Beastie Boys - Check Your Head [Capitol 1992]
15 Sunny Day Real Estate - How It Feels to Be Something On [Sub Pop 1998]
14 Weezer - Weezer [DGC 1993]
13 Radiohead - The Bends [Capitol 1995]
12 Pixies - Trompe Le Monde [4AD/Elektra 1991]
11 Built to Spill - There's Nothing Wrong with Love [Up 1996]
10 Pavement - Crooked Rain, Crooked Rain [Matador 1994]
09 Beck - Odelay [DGC 1996]
08 Tori Amos - Little Earthquakes [Atlantic 1992]
07 DJ Shadow - Endtroducing... [Mo'Wax/London 1996]
06 Nirvana - Nevermind [DGC 1991]
05 Liz Phair - Exile in Guyville [Matador 1993]
04 Guided by Voices - Bee Thousand [Scat 1994]
03 Pavement - Slanted and Enchanted [Matador 1992]
02 Radiohead - OK Computer [Capitol 1997]
01 My Bloody Valentine - Loveless [Sire/Warner Bros. 1991]
