If you are wanting to send a message to your donors, whether it's updating them on the progress of your campaign or you just want to send out a quick thank you to those that already donated, just click Updates on the main page of your campaign.
A text box will appear where you can type in your message and add links and/or videos. You can also choose to schedule the update at a later time if you don't want to send it right away.
Once you're finished, just click Post.
Have questions? Please email firstname.lastname@example.org