VideoTag is a fun one player tagging game. Tag some of the funniest videos on the internet, avoid the pitfalls and progress to the next level. See if you can make the top of the leaderboard and become the ultimate video tagger.
The COMPASS Map Labeler is a part of a study which investigates the effect of social tagging and end-user map annotation on search & retrieval in online map portals. The primary outcome of this effort will be a 'ground truth' for the evaluation of map search engines.
OntoTube is a two player quiz game for annotating videos. Both players have to answer questions about the video. The answers they provide are used for data generation.