I'm also only able to share through email. Most of the news I get is through topics that I've added so they all open in IE, and I'm able to share them the same way that I would with anything else. However with news like the home screen story, I tried sharing that by using the email option and trying to get a link, but it only shows an app link. Unfortunately I think the easiest way to share those articles would be to search for it and find it's link. Hopefully the app gets updated sometime soon to enable all the options.