http://sa.ylib.com/
The webpage provides updated news about scientific technology and it provides forum for scientific discussion

http://www.bud.org.tw/
The webpage provides interesting scientific knowledge in daily life.

http://www.chem.cuhk.edu.hk/lab_technique_1labsafe.htm
The webpage introduces laboratory safety through videos

http://www.mr-damon.com/experiments/bunsen/
The webpage introduces the application of Bunsen burner.