Here is a few places i have backlinks from it's just some of the things i have tried
Firstly i have put blogs on a couple of free ad blog sites they cost nothing and you get backlinks and maybe a couple of sales
http://www.freeadvertisingblog.comhttp://merfins.com/shopping-and-product-reviews/finding-perfect-fitting-bras (this will probably show one of my blogs don't laugh )
Then i started putting discount codes on voucher sites, again don't know if i got any sales but i get the links.these are a couple of free ones i found.
http://www.shoppingvouchers.co.uk http://www.voucherseeker.co.uk/ http://www.discount-voucher.co.uk/forum/ I also came across quite a few that let customers add discount codes that they have found on other sites so i added mine to them also.
Just thought it may give you some ideas for marketing it has got me a few links and possibly a couple of sales and i would like to think i am contibuting something to the forum instead of just taking from it all the time.
Mike.