Free Online Course Materials. Robert G. Gallager. R Tutorials from Universities Around the World. STAT 133. Khan Academy. Learn to code. How to Write a Spelling Corrector. Coursera.org. UPDATE: we're doing a live, updated MOOC of this course at stanford-online July-2014 (not this Coursera version).
See here: CS101 teaches the essential ideas of Computer Science for a zero-prior-experience audience. Computers can appear very complicated, but in reality, computers work within just a few, simple patterns. CS101 demystifies and brings those patterns to life, which is useful for anyone using computers today. In CS101, students play and experiment with short bits of "computer code" to bring to life to the power and limitations of computers. Www.princeton.edu/~otorres/Excel/