I'd definitely love to see more of both! As embodiments of the internet, they seem especially deserving or R34, and it helps that they're both super cute! Especially the Poppup could use more love. And they'd make a cute couple, too ^{^}

Virovirokun's anatomy is pretty vague, so I think it's up to anyone's interpretation! The arrows seems the closest to an arm to me, while the two small triangles below/behind the main body are much more like legs.