Would re-skinning, duplicating an exising ecommerce website with a new domain name cause any ranking issues? The plan would be that all product data, pricing info etc would be identical, the site would have a minor redesign to change colours, logos etc and all duplicate content would be rel=canonicaled to the original site. In case you are wondering the reason for this is a customer with an existing site wants to try out a new brand without incorporating a massive development costs. The majority of traffic would be driving through google shopping, a bit of PPC, social etc. Is this site duplication likely to harm the original site or will setting up rel=canonical to point to the original site going to be sufficient enough to prevent this happening? Is there anything else is should consider? Many thanks for your help

Link spam is naturally a hot topic amongst SEO's, particularly post Penguin. While digging around forums etc, I watched a video blog from Matt Cutts posted a while ago that suggests that Google only pays attention to the first instance of a link on the page As most websites will have multiple instances of a links (header, footer and body text), is it beneficial to nofollow the additional instances of the link? Also as the first instance of a link will in most cases be within the header nav, does that then make the content link text critical or can good on page optimisation be pulled from the title attribute? I would appreciate the experiences and thoughts Mozzers thoughts on this thanks in advance!