Should sub domain blog have www or non www

[anthonytjm]

My main site has htaccess rewrite condition to force www.

I just added a blog on sub domain and have it www.blog.domain.com

Is this setup correctly or should it be http://blog.domain.com or does it make a difference? A colleague just pointed that out and said it should be non www for blog or any sub domains.

Thanks for any clarification.

[Mike.Goracke]

I believe it really comes down to personal preference.

Generally, when you see sub.domain.com, you usually see the non-www version; however, it really does come down to personal preference.

You are not going to be penalized or anything for using the www version.

It is slightly less work for the user to not have to type www.sub.domain.com vs just sub.domain.com - but I don't think 4 extra keystrokes is going to be that big of deal.

Mike