ClassLink is GCISD's single sign on site for databases, ebooks, and audiobooks. Students also have access to videos through BrainPop, BrainPop Jr. and PebbleGo, and images through Brittanica Image Quest. ClassLink is available on Apple iTunes Store and Google Play. You can also access it on the web. Students should sign in using their school username (the first part of their email address) and their password. Below is a list of resources that can be found in the Library Resources folder on ClassLink.