Best Wallpaper Download Sites

InterfaceLIFT- http://interfacelift.com/wallpaper/

• Best site for Desktop Wallpaper. Also, It's famous for Icon & Theme
• Provides various size => Wide(2560X1600,1920X1200,1680X1050..),Fullscreen 4:3 (1600x1200,1024x768) 5:4 (1280X1024),HDTV(1080p,720p), PSP,iPod
• Sort and browse wallpapers by date, most downloaded, highet rated, most commented
  Also you can browse by category
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DESKTOPOGRAPHY - http://desktopography.net/

• It's a cool site made with Adobe Flash and background music.
• Very high quality. Nature themed and Artistic retouching
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skins.be : Hot model & celebrity - http://skins.be/

• Famous for Model & Celebrity wallpapers. And it have links to Car , Bike and Movie
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Free Wallpapers by Steve Truett - http://www.stevetruett.com/

• High quality abstract image wallpapers
• Supports various size : Full screen,Wide Screen,PSP
  ( 2560x1600,1920x1200,1600x1200,1680x1050,1440x960,1280x960,1024x768,480x272 )
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Mike Swanson's Wallpaper Images - http://blogs.msdn.com/mswanson/

• Mike Swanson(Microsoft's Technical Evangelist)'s Blog page for high quality nature wallpaper images
• Macro wallpaper images : Leaf , Flower , Grass , Water , Shell.. (1600x1200 ,1920x1200 size)
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Another Sites

VLADSTUDIO - http://www.vladstudio.com/wallpapers/ : Simple Wallpapers.
Nice Wallpapers - http://www.nicewallpapers.info/ : Very unique wallpapers.
WallPaperStock - http://wallpaperstock.net/ : Hugh sites.
Digital Blasphemy - http://www.digitalblasphemy.com/
Scott Hill 's Desktop - http://smhill.net/desktops : Personal Sites.