I was just thinking that if you host any completed series, maybe there could be a marker to denote that. Like an asterisk ( * ) at the end of the title or a different color link. That way, we'll know which ones are going to be a complete read & which ones we will spend the next few months (or years) obsessing about.
Just a thought... I'm not even sure if any of these are complete. I think "believers" is but you never know.