There was even one in here that I hadn't heard of, Porteus. This is more of a slideshow than an article but it has a short bit of info on each distro.
http://www.techradar.com/news/10-of-the-best-lightweight-linux-distros
Great article, Jason! I'm always on the lookout for lightweight distros I can use on older castoff computers that newer OS versions and bloaated upgrades don't work so well on. I can attest to Linux Lite, though it has an annoying problem with Adobe Flash Player validation - in Firefox, anyway... And I'm wondering why elementaryOS didn't make the grade, another I like; maybe it's not so lightweight, but being based on Enlightenment 17, it's pretty peppy on the systems I've tried it on.
Yeah, I was thinking about elementary, too. I'd put it in the lightweight category. If it wasn't for notifications not showing Private Internet Access icon I'd still be using it.