Naomi Black, Cynthia Boedihardjo, Jeffrey Posnick Captions make video accessible and more importantly: discoverable to search. Learn how we’re live captioning Google I/O with a new open source gadget, discover caption features in the YouTube Data API based on speech recognition, and find out more about WebVTT, a new format to help broadcast TV subtitling make the leap to HTML5 and the Web.