Via Brendan O'Connor.
Instead of watching The Office or other mind rotting television this fall, you may want to consider watching NLP and ML lectures courtesy of Stanford.
Stanford's Engineering Everywhere is offering some course materials for free, including lecture videos and course notes. I hope CMU and other top CS programs do likewise.
There are two interesting courses, including lectures that are relevant for IR people:
Natural Language Processing (CS224N)
by Chris Manning (course site) (SEE link).
Machine Learning (CS229)
by Andrew Ng (course website) (SEE link).
(A small plug for the Machine Learning course, CMPSCI 689 here at UMass, which I look forward to taking.)