Just for you Lively early adopters out there, there's a script that's been posted to the International Stock Exchange forum showing how to get a feed into the virtual world.
Here is a free PHP script to convert the titles of a news feed to a PNG graphic for display in Google Lively. To display a news feed in Google Lively, go to the "Add object" button, search for "Picture Frame". Click on add to room and then edit properties. In Gadget Options place the url of the PHP script in the option box.
The script can then be hosted on a web server where it can pull down the latest stories and update the PNG image accordingly.