I would like to put my co-op ads on two sites, my main site, and my tuorials site. The main site is a top level and the tutorials site is a sub-domain of my main site. Is it possible to get weight credit for my tutorial site as well, or would I need to create a new account. Thanks.
If you want it on the main domain and all sub-domains just remove the www off the front of the registered URL (but be wary if that has different PR), so you are probably better having more than one account like bassman and fryman said.