New feature: Pencasts

I've recently added the first in what I hope will be a series of pencasts.  These are quick, handwritten and often narrated overviews of individual anatomy & physiology concepts.

The first pencast is a quick overview of bone cell actions. It quickly runs through the main actions of osteoblasts and osteoclasts.

Hopefully, other pencasts will soon follow.

If you'd like to make your own pencasts, you can do that with a Livescribe 2 GB Pulse Smartpen or similar model.  If you have one that you think would help other users of Lion Den, be sure to pass it along!