Firstly, I'm not even sure if it's supposed to be spelled scale mail or scale maille, but I go for mail because I just did. But that aside this is probably the more popular thing here, even more than the free patterns page.
Why? Because firstly it's fairly unusual, and secondly (and likely stemming from point one) lots of people want to know how to breed bits of metal and wool for themselves to make their very own shiny, scaly creations.
A very shiny, scaly creation
Scales -> Gloves but in a way that will make sense
In addition to that (and this will all be entirely free) I'm also (slowly) working on a new tabby page for DIY knitting scale mail with tutorials and things. There will be at least a text description of "How to insert a scale onto your knitting on a knit stitch" and similar for purl, preferably accompanied by photos and hopefully there will eventually be video tutorials to make sure everyone can do it! I have a few other things in line for the page, but that's the main part.
***EDIT: It's up there right now! Check out "DIY Scale Mail" in the tabs at the top left :D***I