Tutorials Used

Animating Tutorials used:

http://www.blendercookie.com/2009/11/16/creating-a-face-rig/

http://www.renderosity.com/using-shape-keys-in-blender-3d-cms-14021

http://www.youtube.com/watch?v=iCshMVeM5Jg

Modelling tutorials used:

http://www.blendercookie.com/2009/03/02/bundle-complete-head-modeling-series/