Future Me - Send an email to your future self
Thankbot - Drive more business with handwritten notes
Dabble Me - Your own private place to write. A journal/diary to help you remember what's happened in your life.
Thankster - Automagically send hand written cards
Letter to my future self - Letter to my future self is a prominent email scheduling service that gives you the opportunity to create a letter with goals and thoughts for your future self and schedule a date for sending it.
Socialkeeper - Cultivate your friendships