Cover Art and Record Collections

Below are fantastic sites featuring collections of recordings, sheet music covers, discographies, or album cover art. Know any others that should be included?

1. 100 Years of Exotica by In Hi-Fi
   
2. 317X - Hip Album Covers
   
3. 45s Artwork - NoRelevance
   
4. 78s, Acetates, and Weird Records
   
5. Both Sides Now
   
6. Audio Obstacle Course
   
7. Bizarre Record Covers
   
8. Blaxploitation.com
   
9. Both Sides Now Label Discographies
   
10. CBS Late Show Record Collection
    
11. A Child's Garden of Record Labels
    
12. Cocktail Music for Robots - LP Cover Gallery c1959
    
13. Cover Heaven
    
14. Dana's Virtual Museum of Unusual LP Cover Art
    
15. Demonfuzz Records
    
16. e l e n c o cover gallery
    
17. Fidelitarium album covers
    
18. Jim Flora Gallery (Record Cover Artist)
    
19. Hillsdale Record Co.
    
20. Hip Surgery Music Guide Links to More Album Art
    
21. The Internet Museum of Flexi - Cardboard - Oddity Records
    
22. Kini's Collection (Exotica and Space Pop)
    
23. K-Tel Classics
    
24. Retro Cocktail Hour Cover Gallery
    
25. Frank's Vinyl Museum The Internet Home of Weird Records
    
26. Gilstrap It Crawled From the Bins
    
27. It's All Under The Hat!
    
28. Mercury Records Collection
    
29. Oddity Records
    
30. The Perfect Square Foot
    
31. Psychedelic Records
    
32. Radio Bastet LP Cover Gallery
    
33. Rato Records
    
34. Raymondo's Dance-o-rama
    
35. Retroplanet
    
36. Sabadabada Brazilian Records
    
37. Sex! Drugs! Rock'n'roll!... and some record covers.
    
38. Show and Tell Music
    
39. Space Age Pop A Go Go
    
40. Ted Staunton's 78 rpm Label Collection
    
41. Templeton Sheet Music Collection
    
42. Tralfaz Album Cover Art Gallery
    
43. Vinyl Rescue Mission
    

This is from Oddio Overplay Links. Sites you recommend will be added to the list.