Taking a look at creating a basic rig for a leg in Blender, Oliver Villar Diz shows how to set up the leg and foot using inverse kinematics and also covers skinning the model for proper deformation when animating.
Robin Wilson shows how you can set up in IK pole vector in blender without breaking the bind pose- Often times Robin notes that setting an IK Pole vector on an elbow for a character will break the bind pose.
Jonathan Lampel hosts a look at using multiple particle systems in Blender on blender Diplom, to create realistic animal fur, walking though how to create fur materials for rendering with cycles.
Not being able to find anything on creating a Penrose tiling pattern in Blender, Robin Wilson set out to script his own
Umberto Oldani walks through how he created a scene with grass, flowers and a tree in Blender, using the freely available Arbaro Tree generator intended for POV Ray
Hadi Hajdarevic shows how to export an animated character in Blender into the Unity 3D engine, showing the workflow from Blender for getting animated assets into Unity 3D.