This document provides an overview and summary of key features for Skype for Business, OneDrive for Business, and Office Delve. For Skype for Business, it describes features for presence, contacts, instant messaging, audio/video calls, conferencing, and external user support. For OneDrive for Business, it outlines capabilities for file creation, upload, syncing, editing, and sharing files. For Office Delve, it explains how users can find people, documents, and boards and view content cards that provide activity and sharing details.