Pretty much. They have some kind of super top secret algorithm for at least one of them. :) Since you're already signed up for Asher's Engagement League (that's one part of this), you'll just need to go over to the C-squared server and put your name in, I think is how it worked. I haven't done it in a while, but there should be some instructions. You'll find all the usual suspects there, too.

Then you basically go curate and comment on the ones you like from the c-cubed curated lists, plus the ones C-squared has commented on. So, basically similar to the curie contest. You'll want to get caught up to speed better than that, but that's the general idea.