Blue Note album covers
Check out this very cool Japanese site, dedicated to the groundbreaking Blue Note label. Blue Note was as influential in terms of art/cover design as they were with their musical output. Look no further, than many modern hip-hop and rock covers for proof.
The site boasts a priceless collection of hi-resolution scans of nearly all Blue Note covers, even the 10-inches. They are organized by label number. Great for designers, admirers, and collectors alike.