It is on the site.
Look - its on the right of every photo page.
The issue is that there's still quirks, so we're not fully pushing it yet. For instance, if you look at the POD picks, the first few weren't good.
It takes a bit of time looking at the logs of real data to get the algorithms picking the right media.
However, its a great start.
You can see each section separately here:
The scripts we used to back-populate the of the month and of the week were decent, but there's a few quirks in there.
Over time we'll get it perfect. Of the day now is pretty good - the photo it picked from yesterday was awesome.