I've created a cool widget using the clearspring platform at www.clearspring.com. You can embed this widget pretty much anywhere - google, facebook your own web page etc - it's a great way of sharing links in a way that is under your control.

To create one is incredibly simple - it took longer to sign up than to create the widget. The documentation is pretty good so I won't regurgitate it here, but to summarise you just need to point it at a url. I haven't fully got into it so I'm sure there is a whole lot more that can be done, but for now I've just pointed it at my home page. It is a bit big at the moment to fit everything in, but all I need to do when I get some time is to create a specific web page to point the widget at which won't have the header, footer and tags etc - hopefully it gives you an idea of what is possible though.