I am making a series of videos deconstructing the game design aspects of other games, starting with World of Goo. I hope you like it! You can see the full video here: youtube.com/watch?v=XAoW9fjKmo4&fmt=22
Check out our blog at blog.wolfire.com/ to see more videos like this when they are done, and to see Kyle Gabler's response to this one! Be sure to subscribe so you don't miss them!
You can get the demo for World of Goo at 2dboy.com/games.php