Texture Resources

Textures:
http://www.blendernation.com/2006/06/28/openfrag-game-texture-library/
http://www.blendernation.com/2007/08/20/texturearchivecom/
http://www.blendernation.com/2006/04/21/free-texture-and-reference-images/
http://www.blendernation.com/2006/08/26/concrete-texture-pack/
http://www.blendernation.com/2006/09/08/free-textures-cgtexturescom/
http://www.blendernation.com/2006/08/30/nasa-blue-marble-project/
http://www.blendernation.com/2007/02/09/more-than-25-texture-libraries/

Sounds:
http://www.blendernation.com/2006/07/14/free-sound-database/

Blue Prints:
http://www.blendernation.com/2006/10/23/blueprints/
http://www.blendernation.com/2007/01/20/more-blueprints-google-patents/

Models:
http://www.blendernation.com/2007/07/12/resource-for-architectural-visualization/
http://www.blendernation.com/2007/08/11/3d-models-library-in-blender-native-format/

Themes:
http://www.blendernation.com/2006/09/11/more-blender-themes/
http://www.blendernation.com/2006/07/04/blender-theme-repository/

Materials:
http://www.blendernation.com/2007/05/01/treatkors-junky-material-library/

Fur Library:
http://www.blendernation.com/2006/03/26/fur-library/

Gimp Texture Plugin Maker: Makes repeatable textures very easily.
http://www.logarithmic.net/pfh/resynthesizer

Texture Painting in Blender:
http://www.yofrankie.org/tutorial-texture-splatting/

Blender MulitLayer Texture Painting:
http://www.yofrankie.org/tutorial-texture-splatting/