I just discovered a great tutorial series on nuno felting by Terri Pike. Here are the videos on nuno felting:

[youtube https://www.youtube.com/watch?v=NyEfiUV40KQ&w=560&h=315]

[youtube https://www.youtube.com/watch?v=_eHUn9QxphE&w=560&h=315]

[youtube https://www.youtube.com/watch?v=eTv_Aktac9g&w=560&h=315]

And here’s another one on different types of add-ins you can use in felt:

[youtube https://www.youtube.com/watch?v=8DEd0uE7w5M&w=560&h=315]