FileInvite - Stop chasing your clients for documents! Easily request files, documents, forms & signatures from your clients – set a due date and save hours as your requests are returned to you effortlessly.
Waver - Description: Google Wave is a great way to communicate and collaborate. Waver lets you:
iDeals Virtual Data Room - iDeals Virtual Data Room is a tool that provides secure access to large amount of confidential documents and can view, analyze and collaborate in a protected environment.
Rizzoma - Email and IM are linear contextless communication tools.
Clinked - White-label Client and Team Workspace
BSI Knowledge Manager - Central document management & knowledge base