Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
I've just decided to make my journal private, for only my friends. Since it's mainly for Annie, Alice and Sarah anyhow, I don't see a reason to keep it public for people who don't know or understand things that go on. Just a warning.