FeedStore for Chrome lets you catch up on Google Reader news while offline: "Google axed the offline mode in Google Reader. I didn't use it that often, but it was a nice way to catch up on tech news while I made the 6-hour trek to Winnipeg from my home in the North. Thankfully, there's a new Google Chrome extension called FeedStore which brings back offline reading.
Just install the extension and you're ready to go. FeedStore adds an icon to your browser actions area and notifies you when new unread items arrive -"