Feel free to add useful files to the folders on each garden if you find something nice. Be aware, though, that SugarSync records who posted what file and always keep a copy for yourself, posters, because I may things out. Don't post anything irrelevant to the project subject defined by the folder.
I have not yet explored Youtube and Flickr type sites for documentation on these gardens. Everything I have here for you, except for some color pictures, is from books I have.