Good resource for metrics! I'd really love some more qualitative information though - like by metrics alone, exploding.heads looks pretty decent; but I know just from hanging around here for the past month or so that it's a hive of neonazis and definitely NOT somewhere I'd want to spend any time. Also info like which instances block / are blocked by the one in question; compatibility with mobile apps or quality of mobile website... shit like that. Would have been awesome to have a guide like that when I joined up as a brand-newbie; but even after having my feet in the water for a bit, I'm kinda lost on where to go from here.