A hyperlink is a word(s), an icon, a picture or a shape that when clicked on jumps to the linked document or a new section.
Yes, they are quite helpful as they:
-Navigate to an existing file or Web page on a network, intranet, or the Internet.
-Start a file transfer, such as downloading a file from, or uploading a file to, an FTP server
How to make hyperlink?
-Select the text, picture, or shape.
-On the Standard toolbar, click Insert Hyperlink .
-Under Link to, click Existing File or Web Page or Create New Document.
Check this for further information:
http://office.microsoft.com/en-us/pu...010203490.aspx