Books and Lecture Notes
In random order (books first)
Michael J. Kearns and Umesh V. Vazirani
An Introduction to Computational Learning Theory
MIT Press, 1994
M. Anthony and N. Biggs.
Computational Learning Theory.
Cambridge Univ. Press, 1992.
M. Kearns.
The computational complexity of machine learning.
M.I.T. Press, 1990.
Oded Goldreich
http://www.wisdom.weizmann.ac.il/~oded/cc.html
Lecture 25: Computational Learning Theory.
Sally A. Goldman
http://www.classes.cec.wustl.edu/~cs527/lecture-notes.html
Ron Rivest
http://theory.lcs.mit.edu/~mona/lectures.html
Avrim Blum
http://www-2.cs.cmu.edu/~avrim/ML98/home.html
Scott: WUSTL
http://userfs.cec.wustl.edu/~cs582/scribe-notes.html
Ron Shapire
http://www.cs.princeton.edu/~schapire/