Thanks for helping out, guys.
The homepage took the biggest hit (54% drop), but most pages took big hits from a year ago. So I'm assuming it was a site-wide drop in rankings.
When I look at the OSE metrics, it looks like readprint.com should be crushing the competition, but they're now crushing us. That's why I'm so baffled.
Perhaps the competition has more unique content, better layout, better pagespeed? I'll keep looking, but I'm hoping it's something reversible.
Thanks!