With Privnote you can send notes that will self-destruct after being read.
1. Write the note below, encrypt it and get a link.
2. Send the link to whom you want to read the note.
3. The note will self-destruct after being read by the recipient.

By clicking the options button, you can specify a manual password to encrypt the note, set an expiration date and be notified when the note is destroyed.

To know more about how Privnote works, check out the about page.