On 15 June, we'll be making some changes to the 'Share' icons that allow you to share eBay items via email, Facebook and Twitter.
We're moving these icons higher up the listing page, and adding a Pinterest icon. (Pinterest users can 'pin' items to their online boards, sharing them with a broad community.)

Social sharing is rapidly becoming a valuable marketing tool, as it can potentially increase selling opportunities through viral sharing and referral traffic. We encourage you to use these 'Share' icons to promote and share great items.

Regards,
The eBay Team