General Beta Information - Information on beta phases, download instructions.
Youtube tutorial video - Youtube video with a basic tutorial of the game.
Guide to Strand - Building an army and upgrading units.
Guide to Combat - The Basics of Combat.
Trevor's High Concept The Banner Saga Guide - Advanced concepts guide.
Trevor's getting started guide and assorted videos - A collection of video tutorials.
All-in-one Guide - Raven2134's in-depth guide.
TURN MECHANICS DISCUSSIONS
Guaranteed turn mechanics - The most indepth discussion on the turn mechanics.
Prepare-to-Pillage! - Discussion about pillage mode, the new end game mechanic.
Pausing the game - HERE
Draws and stalemates - HERE and HERE
Movement and attack ranges in the UI - HERE
Match queue/waiting for a game - HERE
Unit type limitations - HERE, HERE and HERE
Replays & Spectating - HERE