Algorirthms Visualized (Animated) - algomation.com/

http://www.algomation.com/

Videos in youtube:
http://www.youtube.com/watch?v=aXXWXz5rF64 - Bubble Sort  vs  Quick Sort

An introductory course in Harvard: CS50
http://cs50.tv/
https://www.youtube.com/watch?v=h2d9b_nEzoA - CS50 - Arrays, Linked Lists, Hash Tables