The widgets that are currently available on Samsung products are listed at the link below. I don't get prior information for new widgets that may be added in the future, but when they are available, they will be available to choose in the dock.
In the UN46B8000 user manual, it mentions access to Yahoo widgets in addition to the specific Samsung widgets listed on the Samsung widgets gallery page. I see a number of Yahoo widgets I'd like to get such as a Phone Book listing, Weather radar, and some other specific widgets. Are these available for loading to the dock?