From my point of view the CRM eLearnings for this Community are really helpful. For sure not all Videos are related to basic functions of CRM, but there are many Videos explaining how CRM works and why it works this way.
Here the direct link:
There are also good Blogs explaining basic thinks. Just enter the Section Blogs and filter for CRM.
As an example: One recent Blog is about "[What's a Lead in SAP CRM?|http://www.sdn.sap.com/irj/scn/weblogs;jsessionid=(J2EE3417600)ID1322377650DB01061339403520123576End?blog=/pub/wlg/15980]".
Please find below some of the links for learning purpose for SAP CRM Technical.