Video:Blender tools

Targets

Introductory video on MakeTarget (official)

VScorpianC's more thorough tutorial on MakeTarget

Clothes

Make Clothes that Fit 3D Models with Blender Addon (by VscorpianC)

Create cloth (basic vest), using sewing drafts, part 1 (grinsegold)

Create cloth (basic vest), using sewing drafts, part 2 (grinsegold)

Animation and BVH

Easy Walk Animation with Blender and Makehuman (by Steven Whitfield)