I think that there are some niches where it's easy to find a target market. For instance, if I sold yarn, it would be pretty easy to find knitters and crocheters to market to. It's much more difficult when you are trying to target 'women who wear jewelry'. Or for me, 'women who wear scarves'. I think the key for us is to find something different that sets us apart. For me, I use linen because it's more ecological sound than cotton or synthetic materials. So, if I was going to be doing targeted marketing (which I haven't done yet, but plan to do), I'd market to yoga studios, groups who want natural products & are interested in eco-friendly options. Not something I've done yet, but plan to when I have more time (right!). It's even more difficult with jewelry. But try to find something about your pieces that sets your work apart from the rest, and try to find that customer. It's hard, and not really my thing, but that would be what I would do.