Most Facebook developers will tell you that they create two different kinds of widgets.

There are widgets of expression, geared towards harnessing the viral aspect of Facebook by getting users to share the app with other users. These “expression” widgets often don’t have much of a goal beyond entertainment. One, for instance, lets users share movie ratings. Another helps users build “virtual scrapbooks.”

The second kind is the utilitarian widget, which include clocks, weather reports and other helpful accessories.

We scoured the widget libraries and came up with five of our favorites for business users based on their utility for getting the job done. Feel free to add suggestions in the comment space below for widgets that we might have missed.

1. Wikimono. Face it. E-mail has become so pass