Fxguide - Matte Painting: The Tools
Matte painting discussion with Gerhard Mozsi, a concept artist and matte painter, about tools and approaches used. Also covers some of the tips and tricks of Photoshop and Painter.
http://www.fxguide.com/article328.html

NaturePainter Software
NaturePainter Digital Canvas is the natural media painting software for Windows that makes it easy to learn, practice and teach painting. Comes with tutorials, try different natural painting techniques, use different brushes and tools, and experiment with colors and styles.
http://www.naturepainter.net/

Leadview
LEADViEW includes a wide range of image processing filters and effects for color correction and enhancement including red eye removal, brightness, contrast, gamma, unsharpen mask, edge detection filters and many more.
http://www.leadview.com

Professional Photographer: Bonus: Tutorials
Karen Sperling tips: Creating unique paintings with automated Tools, "Secret" oil-painting brush revealed, Blending the "Smart" Way, Fairy dust brush effects, Impressionist style, Composites, and Painting hair.
http://bonus.ppmag.com/tutorials/index.html

Mack Prototype Inc
Our Services Include Rapid Prototyping with CNC, Rapid Prototyping with SLA, Polyurethane Molding, Rapid Tooling, Injection Molding
http://www.mackprototype.com/

Roll Roy
Supplies paint rollers and other painting tools.
http://www.rollroy.com/

AVD Graphic Studio
AVD Graphic Studio : edit your images with multiple tools and effects
http://www.avlandesign.com/graphstudio.htm

Zhejiang Jingwei International Trading Co Ltd
Manufacturer of painting tools, brushes and rollers.
http://www.jinweii.com/

John Canning Painting Studios
Specializing in ornamental decorative painting, conservation and restoration of historic interiors.
http://www.canning-studios.com/

Issues Impacting Bridge Painting
Overview of research on painting of steel bridges. Uses life cycle costing.
http://iti.northwestern.edu/pubs/fhfr/fhfr_toc.html