RapidMiner Tutorials for your perusal

I have benefited from many excellent videos posted by the RM community.  Recently, I prepared a series of RapidMiner youtube tutorials for an introductory data mining course I will be teaching soon.  I am providing a link to the Youtube playlist for perusal by this community.  A distinctive feature of these tutorials is that each video (except the first two) begins with about 2 or 3 minutes of conceptual background, which is then followed by the RapidMiner tutorial.  I will be happy to receive any feedback.  Thank you.