LinkedIn for the Case study

"look for communities where fashion conscious people gather"
Love it!
That’s exactly my assumption. I’m advocating Pinterest, but I need a way to drive people to it and I think Laura nailed it below — LinkedIn.
Please see my post with a looooong list of justification for using Pinterest. The key metric that speaks to your comment Randy is that Pinterest is the largest Fashion social site.
So, in summary my “audience journey” will be modified to:
"LinkedIn(mandatory for the career-minded) »> Pinterest(inspiration) »> Tumblrs(multiple Tumblrs on all types of clothes, accessories and "getting ahead" tips in short-form article with glossy images) »> Shenshi.co.uk"