For a simple virtual work productivity tool, IDidWork is definitely a great one to try. It is a basic but useful way to get things done in your home office.
If IDidWork can be integrated with a desktop tool, a calendar tool and/or a general productivity tool, this will make this application even more powerful. However, as it stands, it's still worth looking in to if you're looking for a similar solution for your workplace.
Visit http://ididwork.com/ to check it out.