Other
Cold jet.com: What Is Dry Ice Blasting?
Learn about a new, innovated method of cleaning off oils, stripping paints, and other general cleaning applications.
BBC
Bbc Skillswise: Public Sector: Environment and Cleaning
Covers skills that may be needed to work in environment and cleaning.
How Stuff Works
How Stuff Works: How Does Dry Cleaning Work?
Explains the process of dry cleaning and its potential environmental impact. Includes a short video.
Other
Window Cleaning Technology
This blog by Peter Davidson talks about a new window cleaning technology called glass coated titanium.