Here are the results. Obviously with only 75 votes, it's hardly conclusive, but it does give a small indication of what sites may be most successful for you.
I'm already on twitter and find it is great at driving views to my shop, as yet, I'm not so sure about sales! My worry with Twitter is the volume of spam on there. Every day I am 'unfollowing' people as I get sick of multiple direct feeds to their twitter. I guess the big warning for this one is yes, use it to publicise your shop, but don't make every one of your tweets a link to your shop!
I'm currently investing time on Facebook and with 19% of the vote, I think my time there may be well spent. I have been on Facebook for a number of years, but hadn't used it to publicise my jewellery as I was worried about spamming my friends. A fan page is a great option to get around this! You can create a page specifically for your shop and only people who sign up as fans will receive any activity from the page. Please drop by to check out my new fan page.
I'm still developing this page, but expect to see some facebook exclusive special offers on there soon.
A number of you mentioned in your comments that you also use your blogs to publicise your shop and I'm certainly finding that my blog is driving more views and some sales. Some of your prefer more traditional marketing methods sch as leaflets, posters, business cards and word of mouth. I think what I'm taking from this is to maintain a good mix of methods and don't spend so much time publicising your work that you forget to do what you enjoy most - creating!!!
Finally, I was running a giveaway alongside this poll and I'm delighted to announce that Laura Cameron is the lucky winner of these earrings!! Well done Laura.