The Association for Computing Machinery has free online courses for professional and student members. Professional membership is a mere $99/year, and for $198/year you also get access to the ACM Portal and Digital Library. For comparison, a Safari membership (access to online versions of 10 computer books each month) is $180/year.
This is BrainLog, a blog by Dan Sanderson. Older entries, from October 1999 through September 2010, are preserved for posterity, but are no longer maintained. See the front page and newer entries.
August 4, 2003