One single webmaster account at G, Y & MSN for multiple websites; or different accounts for each of your websites?
I've been wondering about this for some time so I thought I would ask here. Is there any downside or disadvantage to having one single webmaster account at G, Y and MSN for all of one's websites, then just add your various sites under that one account login, or should each of your websites have a different account? Does it make absolutely no difference either way?
Thanks for any input.