Information about the course Signals and Systems ("Otot Ve-Maarakhot")-see the course Web site. Additional information is available on my site.
Information about the course Random Signals ("Otot Akrai'yim")-the course Web site is now on moodle. You can view it as a guest. Additional information is available on my site.
The book "Random walks and electric networks," by Doyle and Snell, is a real gem. It is now available free under the gnu conditions. Feel free to dowload this PDF version. The book is also available in other formats.
Humor in science: see
Journal of Young Invetigators (includes links to other humor sites).