[MistahKoala]

One discontinued product that comes to mind - and is missed almost daily - is Evernote's Clearly. Nothing else comes close for simplified reading in the browser. Pocket does the reading experience well, but items have to be added to its archive in order to be read, and its ability to consistently capture articles in full lets it down (in contrast to Clearly and Evernote's 'simplified article' view, which lets users easily adjust the scope of page elements to 'capture'). It was also Clearly's styling that gave it an edge over other on-screen readers (light-on-black styling shouldn't be a competitive advantage for something so simple, but it is for simplified reading plugins).