Waver - Description: Google Wave is a great way to communicate and collaborate. Waver lets you:
SimpleLegal - Modern e-Billing, legal spend, and matter management software for in-house and legal operations. Advanced reporting, automated accruals, invoice management, and more.
Rizzoma - Email and IM are linear contextless communication tools.
iOffice System - Legal Document Management
Walkaround - Walkaround is a variant of Wave, based on the Apache Wave code base, that runs on App Engine.
Brightflag - External legal spend analytics, management and control