Creating Links to Pages, Folders, Other Websites and Email Addresses
Now that you've created a few pages for your Plone site, you can create hyperlinks from one page to another. In Plone, this type of link is called an Internal Link. It is internal because this link won't take you to another website. To link to other websites, see the instructions further down the page for creating an External Link. The following steps explain how to create an Internal Link:
Inserting Links to Pages:
Select the text you want to hyperlink, then click the
button to insert an internal link. It will open a window that looks
something like this:

From this screen, you can navigate around the contents of your site. When you find a page that you want to insert a link to, highlight it and click OK.
Inserting Links to Folders:
You may sometimes want to link to a folder, and not just a page within a folder. The process is similar to the above. Find the folder you want to link to and double-click into it. Now, you'll see the first item in the folder is named ". (name-of-the-folder-you're-in)". Choose that item, and hit OK.

Creating External Links:
If you'd like to link your text to another website other than yours, highlight the desired text and use the External Link
button. Now you'll see a window pop-up for you to enter the address (URL) of the website you want to reference. Important: Be sure to include the http:// at the beginning of the web address. You can also push the preview button to see a preview of the website you are linking to. This is a good way of making sure the link is working properly, before you Save the page you are working on. Push Ok to finish, or Cancel to start over.
Creating an Email Link:
Creating an email link will create a link that will send an email to the person you specify. To create such a link, follow the instructions for External Link above, but erase the http:// and in its place put mailto: no spaces and the email address. The result should look like this: mailto:person@domain.org. Click Ok to finish. Note: You cannot use the Preview feature to test email links.