A Google Drive, OneDrive, Dropbox, or even home-cloud. Whatever you prefer is good for you mind-backup. In fact, if much people accept Selfie Church concept of immortality, this may become a problem of free storage services. They may disappear. That is why we are working on developing a business model of offering the service of “eternal storage”. I.e. you pay once and the storage is forever. Anyway this is not yet ready, and in fact it depends of the reaction of Internet moguls. If they keep their free services and guarantee no interruption in next 1000 years so we don’t have to do anything.
The more important now is encrypting. As you will have to be absolutely honest in data you enter (you want to be re-created 100%, yes) so this may become interesting to the government. And all these files to start being observed by bureaucrats. So it is a good idea to encrypt your data. Then you can ask your children to make the key public for instance 30 years after your death. But the most important is that you don’t even need to publish your key. In times when computer super-mind will be powerful enough to revive a recorded consciousness, so this power will be enough to break and read any current encryption code. So you can encrypt with no worry… Anyway don’t be too assiduous… 🙂
Proceed to Step 3…