an IE plugin

To implement a “Pin It?? like button in IE. The button for reference is here: [login to view URL] I am fine to follow its layout, installation steps, and user interaction flow. After users click the new button, the plugin will: 1. prompt user to login if not 2. pull "Pinboard" like information of the user from backend server, and show it in a dropdown list for user to choose 3. the plugin crawls the URL and extract the "description" meta tag, shows it to user and allow it to modify, before submission 4. if the "description" meta tag cannot be extracted, a blank field still shows to allow user to add description 5. after user submits, these info will be sent to the backend server: URL, file (if the URL is a PDF, a picture), description, id of the "Pinboard" chosen When response, please include your similar works done before, and requirements from the backend server (such as what kind of webservice, API etc.)