As we wrote last month, Google is building a favoriting service called Google Stars that will let users save, share, and organize Web content. The company is testing a wide array of features for Stars, as depicted in a video and screenshots leaked out on Tuesday (previous leaks only included marketing images and mockups). As with the original news, the new details are being revealed courtesy of Google+ user Florian Kiersch. First and foremost, check out the video he filmed showing what testers of the service have access to. As you can see, the main screen shows you all the items you have favorited, as well as an option to break those down by folders and filters (more on that later). There’s also an option to export bookmarks, though it’s not clear what format they would be saved as.