A new feature!

1. Manga/Light Novel Cross-Reference: The site should display an interactive timeline on the episode selector showing exactly which manga chapters or light novel volumes correspond to that specific episode i mean which chapters did it adapt.

Like, say you just finished Episode 4 of a show. The site would say, 'This episode covered Chapters 12 through 14. If you want to switch to the manga right now, start on Chapter 15!
It should also have little warning tags. If an episode is total filler that wasn't even in the manga, it flags it as 'Filler - Skip to Chapter X to stay on track.

Let me know what you guys think...!