Flinn – Best Practices for Teaching Chemistry

http://www.flinnsci.com/teacher-resources/teacher-resource-videos/best-practices-for-teaching-chemistry/

Videos of 384 demonstrations performed by teachers. Each one has a write up to replicate the demo from.

NKU Chemistry Demonstration Database

http://www.nku.edu/~sieveb1/demos/

A demo resource site with many videos and some instructions for and discussions of demos.

The Surfing Scientist

http://www.abc.net.au/science/surfingscientist/

An arrangement of demos, lesson plans and videos spanning multiple science fields geared mostly to elementary students.

Steve Spangler Science

http://www.stevespanglerscience.com/experiments

A plethora of science experiments over a range of topics. The site also has science kits, supplies and gadgets for sale.

Science is Fun in the Lab of Shakhashiri

http://scifun.chem.wisc.edu/

This site has a group of experiments that can be done at home using household materials, descriptions of some common and interesting chemicals, and many additional resources.