Etsy is integrated with Facebook, Twitter, Tumblr, and Pinterest. There are buttons to share items with these sites on every listing.
Share listings on Twitter.
The Tweet button allows you to share Etsy pages with your followers on Twitter. Your followers will see the link you share as a shortened "etsy.me" URL. You can write a tweet along with the link before you publish it.
"Pin It" directly to Pinterest.
The Pin It button allows Pinterest members to share listings directly.
When you pin listings with the Pin It button, the required pin description field is auto-filled with the item title and price. You can also add a note about why you like the item.
Since Pinterest is a separate site, it has its own rules. For more info, check out Pinterest's About page.
Share listings on Tumblr.
Click Tumblr to share the listing to your Tumblr blog. You'll be able to add a caption of your own before clicking Post to Tumblr.
Share listings with your Facebook friends.
You can share items on Facebook using the Like button.
Clicking the Like button allows you to post the listing directly to your Facebook profile's wall. A link to that Etsy page, along with a thumbnail image, is posted to your Facebook Profile Wall and in the News Feeds of your friends on Facebook.