
GMX.com just added a widgets system to their Webmail interface, and that was something I’d like to see there since i started using gmx.
To know more about widgets check this link Web widget
As GMX added that new system you can easily connect to twitter, digg, facebook, weather, websearch and much more that you can imagine just from one place.
Here is a Walkthrough that system:
First to activate that feature you need to go to Setting and choose the tab Experimental, then Check Widgets and Click ok.

Now, click on the "GMX mail" on the left sidebar
That is the page where you’ll see all your widgets.. Click the Edit button. you’ll get that simple page where you have some empty widget spaces just waiting to be filled with what you need.
click on the "Add a new widget" button in one of these spaces, you’ll get a new window asking you what widget you’d like to install.
There widgets are Categorized as you can see in the Left sidebar, you can even added your own widget from any other widgets service you are using like widgetbox or yahoo widgets.
Now after few minutes of setting your own GMX page with what you need you’ll see it like that.