As long as the Web Link tool is enabled you can add
URL links from within your course.
Go to the Course Content page where you want to add the Web
Link and click Add Content Link.
To create a new web link, click on Web Link
>> and then click on Create Web
The Create Web Link window will appear. Enter a
Title for the link, the Web Address
(URL), select if you want the URL to Open in
an new browser window and finally click
To select an existing link, click on the link in the
inventory list, then click on Add