I think I have covered every chapter and every level now. I've added some navigation links on each page to make finding the OCD video you want a lot easier. If anyone has any suggestions or comments please let me know.
Use the tags to navigate too. If you want to view all of the Chapter 1 vids, click on a "Chapter 1" tag.
If you have your own World of Goo resource you'd like to share, send me a link and I'll add it to the site.