Pocket, formerly Read It Later has released Chrome extension that allows you to read and manage your Pocket content. It works similarly to the iOS and Android versions where the content is stored offline, allowing the users to read content even when you are in place where 3G is not available. It offers minimalistic interface, just like their mobile applications.
You can download the chrome extension from here. Just make sure you have the latest version of Chrome browser installed and you will be good to go. You can also pin it to the taskbar to have easy access to it.
Pocket is available for Kobo ereader, Samsung Galaxy Gear, iOS and Android devices. For some reason, there is still no official windows phone app, which is one of the fastest growing mobile platform out there.