You can see how successful your mailing has been by seeing how many recipients clicked on URLs in the your message. To keep track of those clicks, you must first make a clickthrough tracking URL, and insert it in your content. You'll then be able to view the results of the clicks in Reports: Mailings: Tracking Statistics, where a variety of different tables and charts are available:
It's simple to make clicks on text or images in your message trackable:
Inserting clickable text
Select the HTML tab in Content: New Content
Click on Insert URL; the following window opens, set to the Clickable Text tab:
Enter the text you'd like recipients to see in Clickable Text.
Enter the Destination URL you'd like recipients to be directed to when they click on your clickable text.
Optionally enter a URL Name and URL Report Group to help you identify this URL later on in Reports: Mailing Reports: Tracking Statistics.
Click on Insert. The trackable text will be inserted at the bottom of your message (then you can move it to the desired location within your message body).