1066: Year Of The Comet is a free print and play block game (you supply the blocks) about the Viking and Norman invasions of England. It looks terrific.
Dark Ages
Nights of the Crusades RPG
Nights of the Crusades is an RPG that’s gotten lots of good reviews. The good news is that the pdf is free.
Dark Age Scots Banner
Sagas in Miniature blog offers three free download-and-print Dark Ages Scot banners.
Viking Raid Scenario From Practical Wargamer
Here’s a scan of a classic Viking raid scenario from a twenty year old Practical Wargamer issue.
Painting Dark Age Figures Tutorial
Dux Homunculorum has a tutorial on painting dark age figures.