Some of them have strong multi-user collaboration features.

Binfire was originally developed as an online file hosting service with collaboration features.

Licenses were sold in packages of three to allow users to take full advantage of the collaboration features.

What they were thinking was, "oh, Exchange has all these other collaboration features besides email.

WeVideo provides free accounts for personal use, including online storage with video editing and collaboration features.

The collaboration features of Office depend on software standards known as Web services.

They embed common collaboration features such as sharing, email notifications, etc.

The Intro plan includes a single site and all the general collaboration features.

Let's add some collaboration features and then we can charge as much as Exchange.

Many of those users would see the value in buying a full version of Groove with built in collaboration features.