Best directory or subdomain for a blog

[FFTCOUK]

We are planning to set up a blog using wordpress to help improve domain authority and rankings.  Is there a preferred site to put this?  ie  is it best to create a subdomain, or put it in the root directory or put it in a completely different domain?  Or will there be no resulting difference ?

[William.Lau]

Put it as a subfolder, like www.thesite.com/blog. That is if you want to build domain authority, subdomains are looked as different entities majority of the time.

[bradkrussell]

Hi Howard,

It is best to set up the blog as a subfolder (e.g. www.domain.com/blog).

This Q+A thread might help a bit - http://www.seomoz.org/q/subdomains-vs-subfolders. Rand himself (and many others in the industry) states that subfolders are the best for SEO purposes.

Thanks,

Brad

[FFTCOUK]

Thanks Brad,

I've had two good replies, and your link is additionally really helpful.

Howard