Uniform Resource Locator
In other words, a string telling us where we can find something. Related to URL's are URN's, which name things without defining a particular location. URLs are the most common type of URI.
[ Insert reference to RFC defining general syntax ]
[ Insert reference to RFCs specifying URL schemes ]
Wub utility for web and more general color manipulation.
Latest version may be sourced here [L1 ] and perused here [L2 ]
CMcC is the current custodian, but help and improvement is welcome.