I really don't like this much, actually. It's totally confusing (granted, I'm not someone who documents their life in chronological order on their journal) and seems to make a lot of assumptions about the user's understanding of how all these features work.

As an 'advanced' option one could turn on, maybe, but as a default link you could just strayly click? Nuh-uh (I'm in particular thinking of them getting up Monday morning and clicking on Sunday's link to document whatever happened, and then wondering why nobody sees it...).