Blog in Sub Domain or Sub Folder. Pros and Cons

[Uds]

My client wants to show more links on google once someone searches for his company name. Im wondering whats the best way to setup a blog to solve this. Should I create it as blog.website.com.au or website.com.au/blog? What are the pros and cons of each? Thanks heaps guys.

[MattAntonino]

Subfolders are better for blogs as long as the main domain is related to the same topic, the blog is regularly updated and the main site ranks currently.

Let me link you to a few similar answers recently:

http://www.seomoz.org/q/subdirectory-vs-subdomain

http://www.seomoz.org/q/blog-on-a-separate-domain

I think you'll find what you need in there.

Subdomains stand alone so they're good for creating a second top-10 but they need to be SEO'd alone as well so it's double the work.  Assuming you want to get both ranking no matter what eventually, subfolder is the way I'd go.