To create external links do the following:

Go to the Web site that you want to link to using a Web browser.

Highlight the URL, web address and copy it using Ctrl +c

Go to the web page and create the text that will become the link.

Highlight the text or select the text box.

Click on the Hyperlink button.

The Hyperlinks dialog box will appear on the left side there is a list of link type you can create.

The right side of the Hyperlinks dialog box will change

Click on Internet Page

Highlight http:// and paste the URL (web address) you copied by using the key combination Ctrl+v

If you want the web site to appear in a new window click on the down arrow next to type and select New Window.

When finished click OK

Test your external link by doing an preview of the site.