One of the greatest widgets for your blog?

I just read a story over at Venture Beat about a widget from Box. This widget seems to be something amazing. Even though I haven´t tried it yet, I think that this way of sharing files is perfect for bloggers. Think about it, with this widget you can share "everything" from your blog to the whole world without having to write code and change links over and over again, and from what I read the upload part is really easy. Check out the widget at Box.net It both sounds and looks perfect, but what am I going to share with you? At the moment I don´t have a single clue :-)