Using same Adsense on another domain
 

It's been many months since I used my AS account and I am wondering if I can use the same account for a different domain?

As many domains as you like ;)

look into creating channel ids...

https://www.google.com/adsense/supp...ic.py?topic=152

this will allow you to track each site seperate, so you will be able to see which site is doing good and which site is doing bad and then make adjustments to the ads to try to improve performance.

absolutely, there is no restrictions on number of domains you put your AS codes

Just make sure you know which sites you have your Adsense code on. Keep track of it in the back office of Google and you should be fine.