 How does this AddThis.com make money?
bemmu: Seems difficult to make money with this, but here's a few ideas.They could charge new link sharing sites for the privilege of being available in their widget, or for better placement.They could start their own link sharing site / link aggregator based on the data they gather from the widgets, then of course also get prominent placement in the widget for the new site.They could show a small ad in the widget.