Forum Moderators: martinibuster
Are you asking if links from sub.domain.com to domain.com are considered outbound links? I just wanted to clarify your question.
don't bother about crosslinking both subdirectories and subdomains if they ae on the same topic and you keep your greed tight.
example:
if you have a site about widgets at widgets.com and you have two subdomains: new.widgets.com and 2nd-hand.widgets.com you may crosslink them with no problem.
just keep your greed tight and do not create subdomain for each and every single widget such as:
widget1.widgets.com
widget2.widgets.com
that may raise the flag. however, if you do it the way it proves you have thought about the structure, you won't be banned for sure.
you may get some info about banned sites with subdomains but people reporting that have probably abused the subdomains to get better rankings.
I, personally, am using subdomains with success. they are clear to my visitor and that is most important for me.