teresha - 11:15 am on Aug 1, 2001 (gmt 0)

Just wondering if the search engines who consider link popularity important would see a link to www.subdomain.mysite.com as a link to www.mysite.com and vice versa.
I am not asking this in order to link one to the other but rather to find out if the sub domain was given 20 links from sites relevant to its topic and the main site on the root domain is granted 20 links from other sites relevant to its topic would it count as 40 links in total or are they counted separately?