Quote:
Originally Posted by PPC Coach
They both do. Sometimes the way to fix a "slapped" domain is just use a subdomain as google considers this a totally new domain.
If you're worried about killing your domain, just use a subdomain for your ppc activities. That way if anything goes wrong, your main domain will be unaffected.

|
Actually things have changed
Subdomains are
treated as folders nowadays, at least this change has probably by now been implemented.
So subdomains are no longer regarded as a new domain and it will have effect on your main domain concerning negative issues that are caused by a sub domain.