This plugin removes the "Latest News from Yoast" Widget added by Sociable and other Yoast plugins to the Admin Dashboard.
I use the sociable plugin however that plugin's authors started adding a dashboard widget with their web sites feed with the release of WordPress 2.7. There is no option to disable on a global basis. You could manually remove it, however in the latest versions they have made it harder for non-programmers and with the frequency of their updates it was getting annoying to have to do that every time.
This is tested and removes the Latest News from Yoast feed added by Sociable and Robots Meta. If you find a Yoast plugin that adds a latest news that this does not remove, let me know which plugin, and I will update.