Advantages to installing to a subdomain

I want to install Wordpress and other goodies. Are there any advantages or disadvantages to installing to a subdomain as opposed to a directory?
Thanks for the help!

There are big advantages to opting for a subdomain with WordPress. Something like will be much easier to maintain. Little things like mod_rewrite rules, backups, and plug-ins will be easier to work with.

Simon Jessey
Keystone Websites | si-blog

Thanks! Is it still easy to link pages between the domain and subdomain?
(I think I know what I am asking hereā€¦ :^( )

just use your normal < a href > 's to link just like normal
and also by using subdomains you can control the bandwisth useage and stuf like that easier