I'm looking into link building for a site which has country specific subdomains depending on where you access it from. By this I mean here in the UK you will see uk.[sitename].com, in the USA us.[sitename].com etc. The domain www. [sitename].com 301 redirects to the appropriate subdomain. Would it be counterproductive to develop links to the www. domain, or would the link 'juice' be passed on to the subdomains? Or should the individual subdomains be promoted, and do directories etc tend to accept subdomains?? Hope that made sense