minilogs

Hi guys,
This is a bit off topic from WordPress, but I’m not sure where to go or who to ask so you guys seem like the best bunch.
On a few websites I’ve seen minilogs, such as http://www.littleyellowdifferent.com on the side. I was wondering how are they implemented? I tried googling but nothing came up.
Is it a script, an addon for WP? Anyone use this?
Thanks