Do you know that reCAPTCHA can prevent spammers and helps us to scan an old book into digital format, while the Google Image Labeler makes Picture Tagging activities become interesting. Yahoo now also creates a similar feature via its new VideoTagGame, a game that encourages players to put tag on a part of video to improve search accuracy.
VideoTagGame first launched in mid-year 2007 in the Yahoo event, Amsterdam. Now Yahoo is ready to make a pilot application to the public through Yahoo Sandbox so they can collect more data. Similar to Google Image Labeler, VideoTagGame goal is to collect annotation in certain part of a video that allows a search to restore the relevant section in video without the need to restore the entire video as the search results. Tags that describe the video are collected through a multi-player game.