Is there any tool or Mozilla Firefox addon to submit links to social networking sites/services (such as Twitter, Facebook, Digg, Delicious, etc) with one click?
Edit: The first time it is used, there should be option to add my login info on the different social networking sites/services. Next, if I submit link, then it should publish on all selected services.
I don't want to click on individual service button (like Google toolbar share button) to submit. Rather, I want to click on one button to submit link on all services having login info.