All about ... just what the title says. (http://www.wired.com/wiredscience/2011/09/jumping-off-a-building-with-bubble-wrap/)
The Metric System caught on. The ten-day work week proved less popular. (http://www.wired.com/thisdayintech/2011/09/0922revolutionary-calendar/)
If you're into fringe - but not necessarily on the corners of your garments - check out Unpious (http://www.unpious.com/).
If you happen to enjoy looking at pictures of naked women, you need to think about friending the Sexy Photo group (http://sexy-photo.livejournal.com/).