For a while now I have been enjoying really great videos by Common Craft (@CommonCraft). The company specialized in making small but very useful videos explaining technology (and other) concepts in very simple way. The topic for this week is SharePoint.
It is a bit over optimistic (SharePoint is not silver bullet) but it might help a novice user to to understand the key SharePoint concepts. Check it out:
You can check videos on Creative Commons web page.