This is a great new blog all about the mechanics of warfare in the Renaissance period. Lots of interesting stuff about the pike and how they were used. Recommended. The intro text says:
We will focus heavily on Pikemen, pike armed troops, and the "push of pike." Secondary attention is on firearms: arquebusier men, musket men, as well as shield and swords and buckler armed soldiers. How did these men fight, use their weapons, and interact with one another in battle.