Videos:
Introduction to Fractal Geometry (time: 1:41)
If you are fascinated with fractals and would like a complete introduction, this video gives you a complete lecture on this topic. time: 53:45)
http://www.youtube.com/watch?v=5qXSeNKXNPQ&feature=related
This is a video on using geoboards (time: 2:01)
If you want a more advanced introduction of topology, you can view this video (time: 8:30)