How do I add an MOTD announcement?
Go to Announcements.
Select the Announcements tool from the Tool Menu in the Administration Workspace.
Title your announcement and add content.
Give your announcement a title, and then enter the content of the announcement into the rich text editor. You may use the formatting options in the editor to modify the font size or color, add images or links, or embed other content.
Select when the announcement will be displayed.

By default, the announcement is displayed immediately upon posting. You can also choose to hide it (saving as a draft until you are ready to post it), or you may specify dates when the announcement will be available.
Add attachments. (Optional)

Click the Add Attachments button.
Note: Remember that if you include any attachments, the item must be in a publicly accessible location in order for users to be able to view the attachment. See What Resources are specific to admin users? for more information.