The MILL 6 is now out.
It is an online magazine with a specific focus on all matters 15mm. Of course all figure sizes are great, but the MILL promotes 15mm.
The MILL is free to download. Each MILL includes a set of rules for a "gamette." Each gamette uses a few figures and covers an interesting part of warfare, rather than a whole battle. This edition's gamette is M.A.D. Vikings. This is edition 6 of the quarterly magazine.