We are using the excellent Language Fallback module from Alex Shyba in one of our Sitecore solutions. I created a language version of an item. All the content in the fields were inherited to the new language version but the images were not visible. This is how to fix it.
I recently build a social media share function for Facebook, Twitter, LinkedIn and Google+ in a Sitecore CMS solution. There is also an add to favorites in Internet Explorer and Bookmark for Mozilla Firefox. The icons slides out when clicking the share-icon using jQuery toggle. The icons are all stored in one image using CSS sprite technique.