Etherpad enables collaborative coding which is especially helpful in scnearios like coding interviews where you need to watch the candidate write his code. These bookmarklets take it one step ahead & allow you to run code written in any language within Etherpad with just 1-click! It feels like hitting the 'Run' command in your IDE. You can start using these bookmarklets right away by dragging them to your bookmarks bar or by right clicking the link & bookmarking it. Installation & usage is also described in the video above.