According to Wikipedia: Etsy is a website that provides the general public with a way to buy and sell handmade items as well as vintage items and craft supplies. Handmade items cover a wide range including art, photography, clothing, jewelry, edibles, bath & beauty products, and toys. The site follows in the tradition of open craft fairs, giving sellers personal storefronts where they list their goods for a fee. It has been compared to "a crafty cross between Amazon and eBay", and to "your grandma's basement".
Etsy also encourages a friendly community between buyers and sellers similar to social networking. There is a Forum section for discussion and networking. Members can contact one another thru an internal message system called Conversations. There is also the option to make a shop or item a Favorite or "Heart" them so you can keep track of shops to easily find them later and be updated of their new items. There is also a section for Custom requests called Alchemy where members can request or offer custom handmade goods. Etsy also supports "street teams", groups of Etsy sellers affiliated by location or interest that work together to promote their team members. Members of etsy are sometimes referred to as Etsians.
Be sure and check out my etsy shop when you are searching for new, vintage and handmade items.