Future Me - Send an email to your future self
Letter to Yourself - Send a physical letter to your future self
Dabble Me - Your own private place to write. A journal/diary to help you remember what's happened in your life.
Mindlogr - Mindlogr is a private video logging platform which focuses on promoting better mind health, wellbeing, stress management and provides tools and features to help make that process easier.
Drips Diary - Office & Productivity and Sport & Health
my-diary.org - Everyone can have their free personal diary or journal at my-diary.