Searching for Cival War Veterans

I haven't been doing research for very long but I have found a couple of very good websites to research Cival War Veterans. Be warned in advance though it is easy to get distracted. I often find myself reading about people that I have no connection to. The first one is: http://www.researchonline.net/index.htm This one you can go state by state and look up all kinds of information starting withe the name of the person you are looking for and on to information about the Co., or Regiment they served in, to battles they took part in.
The next site is pretty specific to Arkansas.

http://www.couchgenweb.com/civilwar/

This is the ARKANSAS Edward G. Gerdes Civil War Home Page

This has so much information I don't even know where to start. I includes information about POW camps, Union soldiers, CSA, battles and much more. Hope this helps someone doing research.