Well, that ↑ was embarrassing...

I don't know about any current lists, but let me point you in the direction of some of my recently-active contacts that I see at the top of my feeds now:

@David Chung, @Astronomy Picture of the Day (Unofficial), @Karl Fogel, @nukem, @Renato Candido, @Shakthi Kannan, @Debian Project, @Amitai Schleier, @Alexandre Oliva, @brashley46, @XeQuinPasme, @EVAnaRkISTO, @Jackson S de Jesus, @Vladimir, @David...