Punk Rock Picture Sleeves:Sleeve scans for a lot of different bands dating from the late 70's to the mid 80's.
Chris Renna's Sleeve Gallery: Picture sleeves for early US punk singles.
Howard 138's Favorite Punk Picture Sleeves: Sleeves for the Flesheaters, GG Allin, Germs, Crime and other early punk bands.
Punk Coverz: A site that displays the covers of albums of pop-punk bands like NoFX, Bad Religion, Blink-182 and Lagwagon.
Punk Rock Picture Sleeves: Unless you're kind of curious to know what these record sleeves actually look like then this page might not be too interesting.
The Hitch-Hikers Guide to Punk Rock-Rare Sleeves: A page dedicated to a rotating gallery of rare and ultra-rare punk single sleeves.