Definition: 

Block out distractions. Avoid information overload.  Get things done.

Tools:

• Freeverse: Shield your desktop from distraction. (Mac, free)
• Readability2:  Bookmarklet that strips out the clutter from web pages and allows you to focus on the main text.   See also the original Readability, which allows you to set the style, margins, and font size for a web page.  (Cross-browser, free)
• Scrivener: integrated writing platform for novelists, scholars, and others who want to manage the writing process seamlessly. (Mac, commercial)

Resources: