ETSY is all about products and photos of them. The BEST social media accounts to start and lock up your Shop Name handle (ETSY Shop Name = @ETSYShopName for every social media handle...continuity is KEY) include:
-Pinterest
-Facebook
-Google +
-Twitter
-Instagram
-YouTube
Pinterest is key here. First post all of your product images, product lifestyle images, quotes, memes and more on your Pinterest account. Include BACKLINKS to your Etsy products (paste the link to the specific product in the image description/caption field while posting)!
From here, you can literally COPY and PASTE this content every couple days into Facebook, Instagram, Twitter and Google + posts. This may seem repetitive, but what you are doing is capturing potential new customers on ALL the varying social media networks AND creating a BACKLINK to your Etsy product listings!
Then for YouTube, simply film quick, but well lit, videos of you displaying and/or using your product. In the YouTube video description include a BACKLINK to the Etsy product listing!