I changed all my static content references to use the static.
subdomain instead of www.
but YSlow still says I am not using cookie-free domains for my static content. What else do I need to do?
What else do I need to do?
To be completely cookie-free, you should use a different domain, not subdomain because cookies can be shared between subdomains. For example take a look at how Stack Overflow does it:
stackoverflow.com
sstatic.net
So in your case:
www.justineyandlephotography.com
anything that doesn't end up with justineyandlephotography.com
It basically means that you need to purchase an additional domain if you don't already have one.