I found this a while ago but just remembered it. You gotta be pretty bored but it’s something to pass the time I guess. It’s how google builds it database of keywords for google images. You connect in using a username or just as a guest and you wait for google to find a partner for you. Once one has been found a series of pictures is displayed and you are asked to enter keywords for the picture being displayed. Once you and your partner have a match the next image is shown.