Inserting a link to another website into an Article
From Joomla! Documentation
Something that I've found helpful when adding links to pages, is to have another browser window open with the page you want the link to point towards. This is especially helpful when you are working on the same website that you are also editing.
Adding this information to the article might make it easier for some users.
OnTheMarkDesign 00:00, 2 November 2008 (EDT)