Textures  

• cgtextures
• Planet Earth texture
• TextureKing
• 2textured
• Lughertexture
• Stocktextures
• Grungetextures

• Imageabstraction
• Bricksntiles
• Terminal26
• FreeTextureSite.com
• Washboardabs
• Gamebeep
• Сg-india

• Texturama
• 3dxo
• Freetexturemaps
• Spiralgraphics

photo stocks  

• Alamy
• Bigstockphoto
• Everystockphoto
• Corbis
• Stock.XCHNG
• 123rf

• Stockvault
• Freepixels
• MorgueFile
• Freerangestock
• PixelPerfectDigital
• FreeDigitalPhotos

• ImageBase
• Dreamstime
• Indisain

3d content

• renderosity
• Baffolobill

icons

• Iconfinder
• Iconlet
• Free Icons
• Turbomilk

file hosts

• Box.net
• DivShare
• DropBox
• Uploads
• Народный диск
• Uploads

Firefox

• Firebug
• Web Developer
• Measureit
• ColorZilla
• Download helper
• Window resizer