There are many links for people who are interested in lecture demonstrations.
To view a online bibliography of lecture demonstrations provided by PIRA (the Physics Instructional Resource Association), go to:
http://www2.ncsu.edu/ncsu/pams/physics/Edu_Resources/pirabib
To learn more about PIRA in general, go to:
http://cavern.uark.edu/depts/pira/
There are many physics demonstration facilities online. Some of the most helpful are (in no particular order):
University of Maryland, College Park
University of California, Berkeley