Flickr's skinner box

Flickr's most addictive page in their giant game that is photo sharing is easily the Recent Activity page. It used to be a slight drag to have to check comments you left on other photos as well as your own, and soon after they redesigned their iPhone version of flickr, I realized the combined activity page was a much better solution to the problem of how to keep up on what has changed on flickr for you.

I'm happy to see upon checking my activity tonight, the same info on the iPhone recent activity page is now showing up in their website proper. Very cool change.