It's no secret that Facebook is making a huge play for mobile advertising--a move that's paying off--and now those ads in your News Feed are prompting you to take action.The social network has displayed mobile app install ads in News Feeds for about a year, sending its users to the Apple's App Store or Google Play to download advertisers' apps. But Facebook realized that it wasn't helping developers remain engaged with its users post-installation. On Tuesday Facebook introduced deep-links in app ads, so if you're already using an ap
