By default, Sites are sorted alphabetically. On the Sites Administration page (click on Program > Sites), you can also drag and drop programs on the site list to sort it manually. Click on Save after doing so. Please note that clicking on 'Sort List' will undo your changes and revert the list back to alphabetical order.
Sorting with the Ordinal Feature
Click on a Site to edit it.
Sites will display according to the number you give it. If you give some sites the numbers 1, 2, 3, 4, 5, etc., they will then follow that display order.
Flexibility for Multiple Languages
This further allows you to have portions of the site list that will be alphabetical in any language. So, if you want 'Other' to be at the bottom of an otherwise alphabetical list, you could assign it as '999.' The above portion of the list will be alphabetical in any language, but the 'Other' will go to the bottom of the list.
This gives you greater flexibility instead of just sorting alphabetically.
Once again, click on Save to save your changes.