I’m currently sorting out Google Apps Education Edition for internal communication and collaboration at work. Things have changed a bit since I set it up at the Academy last year: there’s a new admin interface and (most importantly) Google Apps Marketplace, amongst other things.
Google Apps Marketplace allows third-parties to integrate their products and services – usually by single sign-on – with Google Apps. Some are paid-for, some free and all have separate terms and conditions to the core Google Apps offering.
I’ve been through all of the third-party products and services currently available (August 2010) and created a Google Doc of those that meet the following criteria:
1. Free (not just free trial)
2. Education or productivity-focused