If you collaborate with teams in the workplace, you no doubt have already heard of enterprise tools like MindTouch Deki and Kablink to help you get the job done. These are great solutions, but for a consumer-oriented option that works right out of the box, Collanos Workplace is a terrific choice. It's cross-platform, easy to set up, open source, and free.

I gave Collanos a whirl recently and, despite a couple of minor issues that aren't show-stoppers, I was impressed with the software. While it might not be robust enough for the corporate world, it's perfect for small businesses and groups with non-technical computer users.