Wikipedia: Uniform Resource Locator
Encyclopedia article about Uniform Resource Locators, or URLs, used as addresses on the World Wide Web to indicate the virtual location of a website or document.
Overview of persistent URLs, redirected online addresses for files or web sites that help web sites keep their online presence even if they change their original URL.
Short definition of URL or Uniform Resource Locator from the Webopedia Computer Dictionary.
Search Engine-Friendly URLs
Tips for website operators for generating clean URLs that will be more easily indexed by search engines.
Towards Next Generation URLs
Article about how to create clean, persistent URLs for your web pages and online files.
Make an ugly web address much nicer.
Introduction to HTML: Uniform Resource Locators (URLs)
Introduction to URLs or Uniform Resource Locators, the method by which documents or data are addressed in the World Wide Web. Intended for newcomers to HTML and web programming.