Google Apps Education Features & Requirements
Gmail: Email storage and search tools that help your students find information fast and instant messaging from right inside their accounts. Allows the users to use labels instead of folders where emails can have multiple labels. Multiple emails in a single conversation will be grouped as a single email thread. The capability to use the Google search engine to look for specific emails in the active as well as archive folder. Mailbox size 7.3Gb and growing.
Google Calendar: Students can organize their schedules and share events and calendars with others.
Google Talk: Students can call or send instant messages to their contacts for free anytime, anywhere in the world.
Google Docs: Share documents, spreadsheets, and presentations. Collaborate in real-time with your team or with your whole school. You can publish final documents to the entire world, too.
Google Sites: Work together to keep related documents, web content and other information in one place, on one site.
Google Video for education: A video hosting and sharing solution that enables schools and other organizations to use video as an effective medium for internal communication and collaboration.
The service supports open standards and uses API to allow other features to be added.