How Do You Determine Oxidation Numbers?

[RPN]

Hello,
Can someone show me a good site that helps explain how to determine oxidation numbers. I keep reading the same information in my textbook but I still don't have a clear idea on how to do that.
Thank you

 

[ShawnD]

Here's a neat site I found.
http://www.chemistrycoach.com/oxno.htm

Are you trying to do organic or inorganic oxidation numbers? Method A on the site is good for organic, Method B is good for inorganic.