AP is one big community with an interesting script on their forums and galleries. Basically you can download more scans and wallpapers if you’re quite active on AP. Activity like writing useful comments and forum posts will grant you "papers" you can spend on scans. You’ll also be granted to download wallpapers if you’re active. You can gain much more papers if you make a donation or if you upload some scanned anime pictures or a self made (naturally) wallpaper/artwork.

Quality of Scans: Good
Go to Animepaper

No info yet.

Quality of Scans: Unknown
Go to Animerender

ESS is really just based on illustrations, little pictures, sketches and scans. It’s really easy, you have unlimited download traffic and there are always many new scans.

Quality of Scans: Good
Go to E-ShuuShuu

MT is one hell of a community. It’s like Animepaper one big forum/gallery. There are always new scans, wallpapers, artworks and especially vectors! There are quite a few vector-wallers on MT who do some really amazing and good job. It’s one good reason just to pass by and take a look. MT grants you to download 5 pictures of your choice for free every 24 hours. But you need to be registered to download anything. MT is based on "credits". You can spend credits to download any wallpapers, scans, vectors and others. You can get credits easy, you only need to upload something you made! Scans will grant you 4 Credits if they’re accepted and each time someone downloads it, you’ll get his paid credits on your account. The same goes for wallpapers. In germany they call it "Ein nehmen und geben", if I translate it correct, "It’s a take and give".

Quality of Scans: Okay/Good
Go to MiniTokyo

MI is the best scan source I know, it’s quality is unbelievable and the scans are mostly quite new and from japanese magazines. You don’t need to register yourself and you have unlimited traffic to download everything you want. I’d say IM is the TOP scan source on the net right now!

Quality of Scans: Very Good/Perfect
Go to Moe Imouto