Sharing elements is a time saving and efficient method of managing your site. When you share an element you create the content and then mark it as shareable. When you mark it as shareable, you can then use that same content on any other page on your site. Any changes that you make to the content also update every place you have shared that element. This is a popular technique for address information. You can create a text element that contains your address information. Then, every other place on your site that needs your address information, you simply insert a new element that is the shared address element. If your address changes, then you update it in one location and all of the shared locations are updated as well.