This site came up to life due to the need for a place where people could actually grasp a sense of history, in relation the different places where they belong to. This is an important human need, and this site seems to be a good option for you to take a look at, if you are looking for such kind of service.
Your notes are encrypted when they synchronize. Don't settle for anything less. Simplenote is an open platform. People are building lots of cool things you can use to extend your experience.