Hate it when you click on a shared news story in Facebook and it prompts you to install an application which shares everything you click on? Ye, me too. Here is the first version of 'Frictionless', a browser extension (chrome only atm) that rewrites all those links and opens the original article website, allowing you to read posts without broadcasting it to the world.
The 2.0 release will have a feature where you can mark any news article on any site as read and share it out back into Facebook. All opt-in, which is what, IMO, 'frictionless sharing' should have been. At least we can hack it in the way we want it to work :)