I'll try to divide these up uh in some way it makes sense.
More popluar
The Notorious B.I.G. - Ready to Die, Life After Death (but RtD is much better)
Junior M.A.F.I.A. - Conspiracy
Jay-Z - The Black Album, Blueprint, Blueprint 3
Eminem - The Eminem Show, Encore (your milage may vary though)
Dr. Dre - The Chronic, 2001
Deltron 3030
Del the Funky Homosapien - Both Sides of the Brain
Common - Electric Circus
Clipse - Hell Hath No Fury
Cee-Lo - Cee-Lo Green is the Soul Machine
Black Star
Outkast - Aquemini, Speakerboxxx / The Love Below
Lil Wayne - Tha Carter III
Murs - Murs for President
Nas -Illmatic
Ol' Dirty Bastard - Return to the 36 Chambers: The Dirty Version
The Roots - Do You Want More?!!??!, Phrenology, Things Fall Apart
Snoop Dogg - Doggystyle (This is really his only good album)
A Tribe Called Quest - The Low End Theory, Midnigh Marauders
Kanye West - The College Dropout
Wu-Tang Clan - Enter the Wu-Tang: 36 Chambers
2Pac - All Eyez on Me
More underground
Sage Francis - Personal Journals
El-P -I'll Sleep When You're Dead
Dr. Octagon - Dr. Octagonecologyst
CunninLynguists - Will Rap for Food, Southernunderground
Cannibal Ox - The Cold Vein
Cage - I Never Knew You <- Link to full album.Atmosphere - God Loves Ugly, You Can't Imagine How Much Fun We're Having
Aceyalone - Love & Hate
Jedi Mind Tricks - Violent By Design, Servants in Heaven, Kings in Hell
Immortal Technique - Revolutionary Vol. 1 / Vol. 2
King Geedorah - Take Me To Your Leader
Kool Keith - Sex Style, Black Elvis / Lost in Space
Madlib - Shades of Blue
MF Doom - MM...Foood?
Doom - Born Like This
Madvillian - Madvilliany
Viktor Vaughn - Vaudeville Villain, Venomous Villian
Quasimoto - The Further Adventures Of Lord Quas
Slum Village - Fantastic, Vol 2
Saul Williams - The Inevitable Rise and Liberation of NiggyTardust!
Other (?)
Antipop Consortium - Arrhythmia
Airborn Audio - Good Fortune
Prefuse 73 - Surrounded by Silence
Cyne - Evolution Fight
Handsome Boy Modeling School - White People
Peeping Tom
General Patton vs. The X-Ecutioners
M.I.A. - Arular, Kala
Shadow Huntaz - Corrupt Data
cLOUDDEAD - Ten
So I'll probably link to songs later, yeah.